APA (7th ed.) Citation

Ogden, C. (1944). The ABC of Psychology. Penguin Books.

Chicago Style (17th ed.) Citation

Ogden, C.K. The ABC of Psychology. Harmondsworth; New York: Penguin Books, 1944.

MLA (8th ed.) Citation

Ogden, C.K. The ABC of Psychology. Penguin Books, 1944.