Richek, M. A. (1992). The world of words: Vocabulary for college students (3rd ed.). Houghton Mifflin.
Čikaški stil citiranja (17. izdanje)Richek, Margaret Ann. The World of Words: Vocabulary for College Students. 3rd ed. Boston: Houghton Mifflin, 1992.
MLA način citiranja (9. izdanje)Richek, Margaret Ann. The World of Words: Vocabulary for College Students. 3rd ed. Houghton Mifflin, 1992.
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