APA Citatie

Guffey, M. E., & Mary Ellen Guffey. Essentials of business communication. Mason, OH: South-Western/Cengage Learning.

Chicago Style citaat

Guffey, Mary Ellen, en Mary Ellen Guffey. Essentials of Business Communication. Mason, OH: South-Western/Cengage Learning.

MLA citatie

Guffey, Mary Ellen, en Mary Ellen Guffey. Essentials of Business Communication. Mason, OH: South-Western/Cengage Learning.

Let op: Deze citaties zijn niet altijd 100% accuraat.