APA-Zitierstil (7. Ausg.)

Williams, J. G. (1973). A field guide to the butterflies of Africa: With 24 color plates by the author (Reprinted.). Collins.

Chicago-Zitierstil (17. Ausg.)

Williams, John George. A Field Guide to the Butterflies of Africa: With 24 Color Plates by the Author. Reprinted. London: Collins, 1973.

MLA-Zitierstil (9. Ausg.)

Williams, John George. A Field Guide to the Butterflies of Africa: With 24 Color Plates by the Author. Reprinted. Collins, 1973.