APA (7th ed.) Citation

Sinclair, U. (2008). Oil! / Upton Sinclair. Penguin.

Chicago Style (17th ed.) Citation

Sinclair, Upton. Oil! / Upton Sinclair. London: Penguin, 2008.

MLA (9th ed.) Citation

Sinclair, Upton. Oil! / Upton Sinclair. Penguin, 2008.

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