APA-Zitierstil (7. Ausg.)

Williams, J. G. (1965). A field guide to the birds of East and Central Africa (1st publ., repr.). Collins.

Chicago-Zitierstil (17. Ausg.)

Williams, John G. A Field Guide to the Birds of East and Central Africa. 1st publ., repr. London: Collins, 1965.

MLA-Zitierstil (9. Ausg.)

Williams, John G. A Field Guide to the Birds of East and Central Africa. 1st publ., repr. Collins, 1965.