Não informado. (1974). Key-word-index of Wildlife Research. Swiss Wildlife Information Service.
Chicagoスタイル(17版)引用形式Não informado. Key-word-index of Wildlife Research. Zurich, Suíça: Swiss Wildlife Information Service, 1974.
MLA(8版)引用形式Não informado. Key-word-index of Wildlife Research. Swiss Wildlife Information Service, 1974.
警告: この引用は必ずしも正確ではありません.