APA (7e ed.) Bronvermelding

Guffey, M. E. (2010). Essentials of business communication 2nd ed. Cengage Learning.

Chicago (17e ed.) Bronvermelding

Guffey, Mary Ellen. Essentials of Business Communication 2nd Ed. Cengage Learning, 2010.

MLA (8e ed.) Bronvermelding

Guffey, Mary Ellen. Essentials of Business Communication 2nd Ed. Cengage Learning, 2010.

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