APA (7. basım) Alıntı
Guffey, M. E., & Loewy, D. (2010). Essentials of business communication (8th ed.). South-Western Cengage Learning.
Chicago Style (17. basım) Atıf
Guffey, Mary Ellen, ve Dana Loewy. Essentials of Business Communication. 8th ed. Mason, OH: South-Western Cengage Learning, 2010.
MLA (9th ed.) Atıf
Guffey, Mary Ellen, ve Dana Loewy. Essentials of Business Communication. 8th ed. South-Western Cengage Learning, 2010.
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