Kipfer, B. A., & Chapman, R. L. (2001). Roget`s international thesaurus (Sixth edition.). Harper Collins Publishers.
Cita Chicago Style (17a ed.)Kipfer, Barbara Ann, y Robert L. Chapman. Roget`s International Thesaurus. Sixth edition. New York, USA: Harper Collins Publishers, 2001.
Cita MLA (9a ed.)Kipfer, Barbara Ann, y Robert L. Chapman. Roget`s International Thesaurus. Sixth edition. Harper Collins Publishers, 2001.
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