APA (7th ed.) Citation

Gill, E. L. (1950). A first guide to South African birds (4th ed.). Maskew Miller.

Chicago Style (17th ed.) Citation

Gill, Edward Leonard. A First Guide to South African Birds. 4th ed. Cape Town: Maskew Miller, 1950.

MLA (9th ed.) Citation

Gill, Edward Leonard. A First Guide to South African Birds. 4th ed. Maskew Miller, 1950.