APA (7th ed.) Citation

(2001). Roget's International Thesaurus (6th edition.). HarperCollins.

Chicago Style (17th ed.) Citation

Roget's International Thesaurus. 6th edition. New York: HarperCollins, 2001.

MLA (9th ed.) Citation

Roget's International Thesaurus. 6th edition. HarperCollins, 2001.

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