Cita APA (7th ed.)

Kipfer, B. A., & Roget, P. M. (1992). Roget's 21st century thesaurus in dictionary form: The essential reference for home, school, or office. Dell Pub.

Cita Chicago (17th ed.)

Kipfer, Barbara Ann, i Peter Mark Roget. Roget's 21st Century Thesaurus in Dictionary Form: The Essential Reference for Home, School, or Office. New York: Dell Pub, 1992.

Cita MLA (9th ed.)

Kipfer, Barbara Ann, i Peter Mark Roget. Roget's 21st Century Thesaurus in Dictionary Form: The Essential Reference for Home, School, or Office. Dell Pub, 1992.