APA (7th ed.) Citation

David. (2002). Roget's Thesaurus of english words and phrases. Penguin Books, Inc.

Chicago Style (17th ed.) Citation

David. Roget's Thesaurus of English Words and Phrases. Penguin Books, Inc, 2002.

MLA (8th ed.) Citation

David. Roget's Thesaurus of English Words and Phrases. Penguin Books, Inc, 2002.

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