BPH
Extension circular, Connecticut Agricultural College, Cooperative Extension Service. Storrs, CT. Nos. 1-?, 1914-?? Extens. Circ. Connecticut Agric. Coll. Superseded by: Extension circular, University of Connecticut, College of Agriculture, Agricultural Extension Service. Storrs, CT. HI 81767
Extension circular, Guam Agricultural Experiment Station, Office of Experiment Stations, U S Department of Agriculture. Washington, DC. Nos. 1-3, 1920-23. Extens. Circ. Guam Agric. Exp. Sta. HI 60246
Extension circular, Kansas State University of Agriculture and Applied Science Extension Service. Manhattan KS. No. 1+, 1915+. Extens. Circ. Kansas State Univ. Agric. Appl. Sci, Extens. Serv. HI 82264
Extension circular, Kentucky Agricultural Experiment Station. Lexington, KY. Nos. 1-?, 1912-?? Extens. Circ. Kentucky Agric. Exp. Sta. Superseded by: Circular, University of Kentucky Cooperative Extension Service. Lexington, KY. HI 82535
Extension circular, Louisiana State University and Agricultural and Mechanical College Division of Agricultural Extension. Baton Rouge, LA. Nos. 1-270, 1915-49. Extens. Circ. Louisiana State Univ. Agric. Mech. Coll. Div. Agric. Extens. Superseded by: Extension publication, Louisiana State University and Agricultural and Mechanical College Division of Agricultural Extension. Baton Rouge, LA. HI 81755
Extension circular, Massachusetts Agricultural College. Amherst, MA. Nos. 1-82, 1916-20. Extens. Circ. Massachusetts Agric. Coll. HI 82275
Extension circular, Mississippi Agricultural Experiment Station. Jackson, MS. Nos. 1-207?, 1916-50? [nos. 4, 5, 12-15, 20, 37-40 not published]. Extens. Circ. Mississipi Agric. Exp. Sta. ?Superseded by: Publication, Mississippi State University Cooperative Extension Service. State College, MS. HI 82183
Extension circular, New Jersey College of Agriculture Extension Service. New Brunswick, NJ. Nos. 1-13, 1918-20. Extens. Circ. New Jersey Coll. Agric, Extens. Serv. HI 82551
Extension circular, New Mexico College of Agriculture and Mechanic Arts Cooperative Extension Service. State College, NM. Nos. 1-223, 1915-5?. Extens. Circ. New Mexico Coll. Agric. Mech. Arts Coop. Extens. Serv. Superseded by: Circular, New Mexico State University Cooperative Extension Service. State College (?University Park), NM. HI 82567
Extension circular, New York State College of Agriculture Extension Service. Ithaca, NY. Nos. 1-15, 1913-15. Extens. Circ. New York State Coll. Agric. Extens. Serv. HI 82453
Extension circular, North Dakota Agricultural College Cooperative Extension Service. Fargo, ND. Nos. 14-191-?, 1917?-48-?? Extens. Circ. North Dakota Agric. Coll. Coop. Extens. Serv. Preceded by: Agricultural extension bulletin, North Dakota Agricultural College Cooperative Extension Service. Fargo, ND. HI 82459
Extension circular, Oregon State University Extension Service. Corvallis, OR. No. 1+, 1922+. Extens. Circ. Oregon State Univ. Extens. Serv. HI 82329
Extension circular, Pennsylvania State College School of Agriculture. State College, PA. Nos. 1-102, 1912-24 [nos. 1-41 were undated]. Extens. Circ. Pennsylvania State Coll. School Agric. HI 82344
Extension circular, Pennsylvania State University Agricultural Extension Service. University Park, PA. No. 339+, 1986?+. Extens. Circ. Pennsylvania State Univ. Agric. Extens. Serv. Preceded by: Special circular, Pennsylvania State University Agricultural Extension Service. University Park, PA. ULS reference. ISSN 1057-2449 HI 82335
Extension circular, Purdue University Cooperative Extension Service. Lafayette, IN. Nos. 420-539, 1956-69. Extens. Circ. Purdue Univ. Agric. Extens. Serv. Preceded by: Extension leaflet, Department of Agricultural Extension, Purdue University. Lafayette, IN and Extension bulletin, Purdue University Agricultural Extension Service. Lafayette, IN. HI 82256
Extension circular, South Dakota State University Cooperative Extension Service. Brookings, SD. No. 1+, 1908?+. Extens. Circ. South Dakota State Univ. Coop. Extens. Serv. HI 82445
Extension circular, University of Alaska Cooperative Extension Service. College, AK. No. 1+, 1942+. Extens. Circ. Univ. Alaska Coop. Extens. Serv. HI 80029
Extension circular, University of Arizona Agricultural Extension Service. Tucson, AZ. Nos. 42-294, 1922-66 [no. 214 not published]. Extens. Circ. Univ. Arizona Agric. Extens. Serv. Preceded by: Circular, Arizona Agricultural Experiment Station. Tucson, AZ. HI 50387
Extension circular, University of Connecticut, College of Agriculture, Agricultural Extension Service. Storrs, CT. Nos. ?-53, ?-1941. Extens. Circ. Univ. Connecticut Coll. Agric. Preceded by: Extension circular, Connecticut Agricultural College, Cooperative Extension Service. Storrs, CT. HI 81768
Extension circular, University of Delaware, Agricultural Extension Service. Newark, DE. No. ?-61?, ?-1950; [n.s.,] no. 1+, 195?+ Extens. Circ. Univ. Delaware Agric. Extens. Serv. Preceded by: Extension circular, Delaware College, Division of Agricultural Extension. Newark, DE. HI 82507
Extension circular, University of Hawaii Agricultural Extension Service. Honolulu, HI. Nos. 1-34, 1929-38. Extens. Circ. Univ. Hawaii Agric. Extens. Serv. Superseded by: Agricultural extension circular, University of Hawaii Agricultural Extension Service. Honolulu, HI. HI 81723
Extension circular, University of Idaho Agricultural Extension Service. Moscow, ID. ?-1920-21-?? Extens. Circ. Univ. Idaho Agric. Extens. Serv. Continued in: Bulletin, College of Agriculture, University of Idaho. New series. Moscow, ID. HI 82544
Extension circular, University of Illinois Cooperative Extension Service. Urbana, IL. Nos. 1-45 1916-21. Extens. Circ. Univ. Illinois Extens. Serv. HI 82514
Extension circular, University of Minnesota Agricultural Extension Division. St. Paul, MN. Nos. 1-47-?, 19??-??-? Extens. Circ. Univ. Minnesota Dept. Agric. Extens. Div. HI 82558
Extension circular, New Hampshire College and Experiment Station Durham, NH. Nos. 1-161-388-?, 1912-34-??-?? Extens. Circ. Univ. New Hampshire Coll. Exp. Sta. HI 82362
