APA (7th ed.) Citation

Kipfer, B. A., & Roget, P. M. (1993). Roget's 21st century thesaurus in dictionary form: The essential reference for home, school, or office. Hale.

Chicago Style (17th ed.) Citation

Kipfer, Barbara Ann, and Peter Mark Roget. Roget's 21st Century Thesaurus in Dictionary Form: The Essential Reference for Home, School, or Office. London: Hale, 1993.

MLA (8th ed.) Citation

Kipfer, Barbara Ann, and Peter Mark Roget. Roget's 21st Century Thesaurus in Dictionary Form: The Essential Reference for Home, School, or Office. Hale, 1993.