Polar bears : proceedings of the fifth Working Meeting of the Polar Bear Specialist Group, organized by the Survival Service Commission of IUCN and held at Le Manoir, St. Prex, Switzerland, 3-5 December 1974
Complete Title:
Polar bears : proceedings of the fifth Working Meeting of the Polar Bear Specialist Group, organized by the Survival Service Commission of IUCN and held at Le Manoir, St. Prex, Switzerland, 3-5 December 1974