Não informado. (1974). Key-word-index of Wildlife Research. Swiss Wildlife Information Service.
Style de citation Chicago (17e éd.)Não informado. Key-word-index of Wildlife Research. Zurich, Suíça: Swiss Wildlife Information Service, 1974.
Style de citation MLA (8e éd.)Não informado. Key-word-index of Wildlife Research. Swiss Wildlife Information Service, 1974.
Attention : ces citations peuvent ne pas être correctes à 100%.