APA (7th ed.) Citation

(1961). Freud and the post-freudians. Penguin Books.

Chicago Style (17th ed.) Citation

Freud and the Post-freudians. Middlesex: Penguin Books, 1961.

MLA (9th ed.) Citation

Freud and the Post-freudians. Penguin Books, 1961.

Warning: These citations may not always be 100% accurate.