APA (7th ed.) Citation

Berger, J. (2009). Why look at animals? Penguin.

Chicago Style (17th ed.) Citation

Berger, John. Why Look at Animals? London [u.a.]: Penguin, 2009.

MLA (9th ed.) Citation

Berger, John. Why Look at Animals? Penguin, 2009.

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