APA
IUCN, . (1972). Polar bears: proceedings of the third working meeting of the polar bears specialist group organised by the survival service commission of IUCN, 7-10 February 1972, at Morges, Switzerland. SWITZERLAND: IUCN.
Chicago
IUCN, . 1972. Polar bears: proceedings of the third working meeting of the polar bears specialist group organised by the survival service commission of IUCN, 7-10 February 1972, at Morges, Switzerland. SWITZERLAND: IUCN.
Harvard
IUCN, . (1972). Polar bears: proceedings of the third working meeting of the polar bears specialist group organised by the survival service commission of IUCN, 7-10 February 1972, at Morges, Switzerland. SWITZERLAND: IUCN.
MLA
IUCN, . Polar bears: proceedings of the third working meeting of the polar bears specialist group organised by the survival service commission of IUCN, 7-10 February 1972, at Morges, Switzerland. SWITZERLAND: IUCN. 1972.
TextPublication details: SWITZERLAND 1972 IUCNUniform titles: 
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