APA (7th ed.) Citation

Swinton, W. E. (1965). Fossil birds (2nd ed.). British Museum (Natural History).

Chicago Style (17th ed.) Citation

Swinton, W. E. Fossil Birds. 2nd ed. London: British Museum (Natural History), 1965.

MLA (8th ed.) Citation

Swinton, W. E. Fossil Birds. 2nd ed. British Museum (Natural History), 1965.