APA (7th ed.) Citation

Roget, P. M., Roget, J. L., & Roget, S. R. (1987). Roget's Thesaurus of English words and phrases. Longman Group UK Limited.

Chicago Style (17th ed.) Citation

Roget, Peter Mark, John Lewis Roget, and Samuel Romilly Roget. Roget's Thesaurus of English Words and Phrases. England: Longman Group UK Limited, 1987.

MLA (9th ed.) Citation

Roget, Peter Mark, et al. Roget's Thesaurus of English Words and Phrases. Longman Group UK Limited, 1987.