Citação norma APA
Guffey, M. E., & Loewy, D. (2010). Essentials of business communication (8th ed.). South-Western Cengage Learning.
Citação norma Chicago
Guffey, Mary Ellen, and Dana Loewy. Essentials of Business Communication. 8th ed. Mason, OH: South-Western Cengage Learning, 2010.
Citação norma MLA
Guffey, Mary Ellen, and Dana Loewy. Essentials of Business Communication. 8th ed. South-Western Cengage Learning, 2010.
Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.