APA (7th ed.) Citation

Morehead, P. D. (2001). The Penguin Roget's college thesaurus in dictionary form. Penguin Reference.

Chicago Style (17th ed.) Citation

Morehead, Philip D. The Penguin Roget's College Thesaurus in Dictionary Form. New York: Penguin Reference, 2001.

MLA (9th ed.) Citation

Morehead, Philip D. The Penguin Roget's College Thesaurus in Dictionary Form. Penguin Reference, 2001.