APA (7th ed.) Citation

De Beer, G. (1930). Embryology and evolution. The Clarendon Press.

Chicago Style (17th ed.) Citation

De Beer, Gavin. Embryology and Evolution. Oxford: The Clarendon Press, 1930.

MLA (9th ed.) Citation

De Beer, Gavin. Embryology and Evolution. The Clarendon Press, 1930.