APA Citatie

Austin, O. L. (1975). Birds of the world, a survey of the twenty seven orders and one hundred and fifty five families. Hamlyn.

Chicago Style citaat

Austin, Oiiver L. Birds of the World, a Survey of the Twenty Seven Orders and One Hundred and Fifty Five Families. London: Hamlyn, 1975.

MLA citatie

Austin, Oiiver L. Birds of the World, a Survey of the Twenty Seven Orders and One Hundred and Fifty Five Families. Hamlyn, 1975.