APA (7th ed.) Citation

Roget, P. M., & Lloyd, S. M. (1983). Roget's thesaurus of english words and phrases ([1983 ed., 4th imp.].). Longman.

Chicago Style (17th ed.) Citation

Roget, Peter Mark, and Susan M. Lloyd. Roget's Thesaurus of English Words and Phrases. [1983 ed., 4th imp.]. London: Longman, 1983.

MLA (9th ed.) Citation

Roget, Peter Mark, and Susan M. Lloyd. Roget's Thesaurus of English Words and Phrases. [1983 ed., 4th imp.]. Longman, 1983.