Não informado. (1978). Studies in avian biology. Cooper Ornithological Society.
Chicagoスタイル(17版)引用形式Não informado. Studies in Avian Biology. Lawrence, Kan: Cooper Ornithological Society, 1978.
MLA(8版)引用形式Não informado. Studies in Avian Biology. Cooper Ornithological Society, 1978.
警告: この引用は必ずしも正確ではありません.