Guffey, M. E., & Seefer, C. M. (2007). Mary Ellen Guffey's essentials of business communication (7th ed.). Thomson/South-Western.
Chicago Style (17th ed.) CitationGuffey, Mary Ellen, and Carolyn M. Seefer. Mary Ellen Guffey's Essentials of Business Communication. 7th ed. Mason, OH: Thomson/South-Western, 2007.
MLA (9th ed.) CitationGuffey, Mary Ellen, and Carolyn M. Seefer. Mary Ellen Guffey's Essentials of Business Communication. 7th ed. Thomson/South-Western, 2007.
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