BPH
Oriental repertory, tracts on the history, industries, etc. of India, China and Indo-China. London. Vols. 1-2, 1791-97; e2, vols. 1-2, 1793-1808. Orient. Repert. ULS 4-3205-1. HI 57763
Origins of life and evolution of the biosphere. Dordrecht & Hingham, MA. Vol. ?-19+, ?-1989+. Origins Life Evol. Biosphere. Preceded by: Origins of life. ULS reference. ISSN 0169-6149 HI 69229
Origins of life. Dordrecht. Vols. 5-?, 1974-? Origins Life. Preceded by: Space life sciences. Superseded by: Origins of life and evolution of the biosphere. HI 69228
Origins. Loma Linda, CA. 1974+. Origins. ULS reference. ISSN 0093-7495 HI 69227
Orion; illustrierte Zeitschrift für Natur und Technik. Murnau. Vols. 1-15, 1946-60. Orion (Murnau). ULS 4-3206-3. HI 57764
Orion nature quarterly. New York. Vol. 1+, 1982+. Orion Nat. Quart. HI 69230
Orkidea lehti; Suomen Orkideankasvattajat. (?-4/1994+), ?-1994+. Orkid. Lehti. ULS reference. ISSN 0359-2022 HI 76798
O R L-Bericht; Institut fur Orts-, Regional- und Landesplanung, ETH Zurich. Zurich. Vol. 68+, 1989+. ORL Ber. Preceded by: Berichte zur Orts-, Regional- und Landesplanung. Zurich. HI 83202
Orman muhendisligi; TMMOB Orman Mühendisleri Odasi yayin organi. Ankara. Vol. ?-37(3)+, 19??-2000+. Orman Muhend. HI 84288
Orman ve av. Istanbul. Vol. ?-15+, ?-1943+. Orman Ve Av. HI 81369
Ormancilik Araştirma Enstitüsü dergisi. Ankara. Nos. 1-76, 1954-92. Orman. Araşt. Enst. Derg. Preceded by: Bolu Orman Araştirma Istasyonu dergisi. Ankara Superseded by: Iç Anadolu Ormancilik Araştirma Enstitüsü dergisil. Ankara. HI 69231
Ornamental horticulture. Farnham Royal, Wallingford. Vol. 1+, 1975+. Ornam. Hort. ULS reference. ISSN 0305-4934 HI 69232
Ornamental horticulture abstracts. New York. [Dates of publication not ascertained.] Ornam. Hort. Abstr. HI 69233
Ornamentals Northwest. Corvallis, OR. Vols. 1-2(4), 1975-78; vol. 5(2)+, 1981+. Ornam. N. W. For 1978-81, see: Ornamentals Northwest newsletter. Corvallis, OR. ULS reference. ISSN 0030-4778 HI 69235
Ornamentals Northwest newsletter. Corvallis, OR. Vols. 2(5)-5(1), 1978-81. Ornam. N. W. Newslett. Preceded and superseded by: Ornamentals Northwest. Corvallis, OR. HI 81370
Ornamentals newsletter. Ithaca, NY. Vols. [1]-17, 1957-73. Ornam. Newslett. Superseded by: Environmental enhancement. HI 69234
Ornithologist and botanist; a monthly devoted to birds and flowers. Binghamton, NY; Des Moines, IA. Vols. 1-2(6), 1891-92. Ornithologist & Botanist. Incorporated in: California traveller and naturalist. Napa, San Jose, CA. HI 79349
OrquidaRio. Rio de Janeiro. 1991?+. OrquidaRio. HI 75953
Orquidea; organo oficial de la Sociedad Mexicana “Amigos de las Orquídeas.” Mexico City. Vols. 1(1-6), 1943; n.s., vol. 1+, 1971+. Orquidea (Mexico City). ULS 4-3208-2. HI 69236
Orquídea. Rio de Janeiro. Vol. 3(4)+, 1948+. Orquídea (Rio de Janeiro). Preceded by: Orchidea. Niterói, Rio de Janeiro. HI 69237
Orquideologia; revista de la Sociedad Colombiana de Orquideologia. Medellin. Vol. 3+, 1968+. Orquideologia. Preceded by: Revista de la Sociedad Columbiana de Orquideologia. HI 69238
Orquideophilo. Vol. ?-2(2)+, ?-1994+. Orquideophilo. ULS reference. ISSN 1315-6446 HI 83906
El Orquidiota. Santo Domingo. Vol. 1(1), 1972. Orquidiota. Superseded by: Boletín de la Sociedad Dominicana de Orquideología. HI 69239
Orsis; organismes i sistemes: Revista de botanica, zoologia i ecologia de la Universitat Autònoma de Barcelona. Barcelona. Vol. 1+, 1985+. Orsis. ULS reference. ISSN 0213-4039 HI 69240
Az Országos Erdészeti-Egyesület évkönyve. Pest. 1867-72. Orsz. Erdész.-Egyes. Évk. HI 57765
