APA (7th ed.) Citation

Prozesky, O. P. M. (1970). A field guide to the birds of Southern Africa. Collins.

Chicago Style (17th ed.) Citation

Prozesky, O. P. M. A Field Guide to the Birds of Southern Africa. London: Collins, 1970.

MLA (8th ed.) Citation

Prozesky, O. P. M. A Field Guide to the Birds of Southern Africa. Collins, 1970.