Polar bears : proceedings of the Twelfth Working Meeting of the IUCN/SSC Polar Bear Specialist Group, 3-7 February 1997, Oslo, Norway /
IUCN/SSC Polar Bear Specialist Group.Working Meeting(12th :1997 :Oslo, Norway)
Derocher, Andrew E.
International Union for Conservation of Nature and Natural Resources.Species Survival Commission.
Gland, Switzerland : IUCN--the World Conservation Union,
1998.
Includes bibliographical references.
Polar bear