Cita APA (7a ed.)

Guffey, M. E. (2008). Business communication: Process and product (6th ed.). South-Western Cengage Learning.

Cita Chicago Style (17a ed.)

Guffey, Mary Ellen. Business Communication: Process and Product. 6th ed. Mason: South-Western Cengage Learning, 2008.

Cita MLA (9a ed.)

Guffey, Mary Ellen. Business Communication: Process and Product. 6th ed. South-Western Cengage Learning, 2008.