APA-Zitierstil (7. Ausg.)

Williams, J. G. (1988). The Collins field guide to the national parks of East Africa (1. publ. in the USA.). Greene.

Chicago-Zitierstil (17. Ausg.)

Williams, John George. The Collins Field Guide to the National Parks of East Africa. 1. publ. in the USA. Lexington, Mass: Greene, 1988.

MLA-Zitierstil (9. Ausg.)

Williams, John George. The Collins Field Guide to the National Parks of East Africa. 1. publ. in the USA. Greene, 1988.