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Pohjoismainen luonnontutkijain kokous, Helsingissä elokuun 11-15 pnä 1936. Helsinki. Vol. 19, 1936. Pohjoism. Luonnontutk. Kok. Preceded by: Beretning om det Skandinaviske Naturforskermøde. Copenhagen. HI 84710
Pohl's Archiv der Teutschen Landwirthschaft. Leipzig. Vols. 53-57, 1844-48. Pohl's Arch. Teutsch. Landw. Preceded by: Archiv der Teutschen Landwirtschaft und landwirtschaftlichen Technologie. Leipzig. HI 58031
Pol'ana; casopis lesného a drevárského hospodarstva. Bratislava. Vols. 1-9, 1945-53. Pol'ana. Superseded by: Les. Bratislava. HI 58033
Polabí, vlastivedný zpravodaj. Podebrady. 1961+. Polabí Vlastiv. Zprav. HI 58032
Polar biology. Berlin, New York, etc. Vol. 1+, 1982+. Polar Biol. ULS reference. ISSN 0722-4060 HI 69638
Polar geography. Silver Spring, Columbia, MD. Vols. 1-3, 1977-79. Polar Geogr. Superseded by: Polar geography and geology. ULS reference. ISSN 0273-8457 HI 69639
Polar geography and geology. Silver Spring, MD. Vol. 4+, 1980+. Polar Geogr. Geol. Preceded by: Polar geography. HI 69640
Polar and glaciological abstracts. Cambridge. Vol. 1+, 1990+. Polar Glaciol. Abstr. ULS reference. ISSN 0957-5073. HI 75561
Polar record. Cambridge. Vol. 1+, 1931+. Polar Rec. ULS 4-3381-2. ISSN 0032-2474 HI 58034
Polar research. Oslo. Vol. 1+, 1982+. Polar Res. HI 69641
Polarflokken; medlemsblad for Nord-Norsk Avdeling av Norsk Botanisk Forening. Tromso. No. 1+, 1978+. Polarflokken. Preceded by: Informasjon fra Norsk Botanikk Forening, Nord-Norsk Avdeling. ULS reference. ISSN 0332-9119 HI 65770
Polarforschung. Beiheft. Kiel. Vol. 1+, 1956+. Polarforschung, Beih. ULS 4-3381-2. HI 69643
Polarforschung; Halbjahresschrift des Archivs für Polarforsching in Kiel. Holzminden, Kiel. Vol. 1+, 1931/43+. Polarforschung. ULS 4-3381-2. HI 69642
Polen. Cordoba. Vol. 7+, 1995+. Polen. Preceded by: Anuario de la Asociación de Palinólogos de Lengua Española. ULS reference. ISSN 1135-8408. HI 82676
Poleznye rasteniyata. Tiflis. 1965+. Polezn. Rast. HI 69644
Polibotanica. Mexico City. No. 1+, 1996+. Polibotanica. HI 79976
Policlinico. Sezione chirurgica. Rome. Vol. 1+, 1893+. Policlinico, Sez. Chir. ULS 4-3382-2. HI 58035
Policlinico. Sezione pratica. Rome. Vol. 1+, 1894+. Policlinico, Sez. Prat. ULS 4-3382-2. HI 58036
Il Poligrafo; giornale letterario. Milan. Vols. [1]-4, 1811-14. Poligrafo (Milan). ULS 4-3382-3. HI 58037
Poligrafo; giornale di scienze, lettere ed arti (1836+: arti e commentario delle conversazione scientifico-letterarie [etc.].) Verona. Vols. 1-16, 1830-33; n.s., vols. 1-8, 1834-35; [ser. 3,] vols. 1-15, 1836-39; [ser. 4,] vols. 1-6, 1840-41; ser. 5, vols. 1-12, 1842-45. Poligrafo (Verona). ULS 4-3382-3. HI 58038
Poligrafo de la Capitanata; giornale di scienze, lettere ed arti. Foggia. Vols. 1-2, 1833-34. Poligrafo Capitanata. ULS 4-3382-3. HI 58039
Polish botanical journal. Cracow. Vols. 46-62, 2001-17. Polish Bot. J. Preceded by: Fragmenta floristica et geobotanica. Cracow. Superseded by: Plant and fungal systematics. Cracow. ISSN 1641-8190 (Print), 2084-4352 (Online) HI 80515
Polish botanical studies. Cracow. Vol. 1+, 1990+. Polish Bot. Stud. ULS reference. ISSN 0867-0730 HI 75601
Polish botanical studies. Guidebook series. Cracow. Vol. 1+, 1990+. Polish Bot. Stud., Guideb. Ser. ULS reference. ISSN 0867-0749 HI 76241
Polish ecological bibliography. Warsaw. 1959+. Polish Ecol. Bibliogr. HI 69645