APA (7th ed.) Citation

Levey, J. S., & Greenhall, A. (1987). The Penguin concise Columbia enciclopedia. Penguin [etc.].

Chicago Style (17th ed.) Citation

Levey, Judith S., and Agnes Greenhall. The Penguin Concise Columbia Enciclopedia. Harmondsworth [etc.]: Penguin [etc.], 1987.

MLA (9th ed.) Citation

Levey, Judith S., and Agnes Greenhall. The Penguin Concise Columbia Enciclopedia. Penguin [etc.], 1987.