APA (7th ed.) Citation

Guffey, M. E., & Seefer, C. M. (2007). Mary Ellen Guffey's essentials of business communication (7th ed.). Thomson/South-Western.

Chicago Style (17th ed.) Citation

Guffey, 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.) Citation

Guffey, Mary Ellen, and Carolyn M. Seefer. Mary Ellen Guffey's Essentials of Business Communication. 7th ed. Thomson/South-Western, 2007.