APA (7th ed.) Citation

Freud, S., & Freud, S. (2003). Beyond the pleasure principle and other writings. Penguin Books.

Chicago Style (17th ed.) Citation

Freud, Sigmund, and Sigmund;Whiteside Freud. Beyond the Pleasure Principle and Other Writings. Penguin Books, 2003.

MLA (9th ed.) Citation

Freud, Sigmund, and Sigmund;Whiteside Freud. Beyond the Pleasure Principle and Other Writings. Penguin Books, 2003.

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