Cita APA (7a ed.)

Guffey, M. E., & Loewy, D. (2010). Essentials of business communication (8th ed.). South-Western/Cengage Learning.

Cita Chicago Style (17a ed.)

Guffey, Mary Ellen, y Dana Loewy. Essentials of Business Communication. 8th ed. Mason, Ohio: South-Western/Cengage Learning, 2010.

Cita MLA (9a ed.)

Guffey, Mary Ellen, y Dana Loewy. Essentials of Business Communication. 8th ed. South-Western/Cengage Learning, 2010.