APA (7. basım) Alıntı

Guffey, M. E. (2016). Essentials of business communication (Tenth edition.). Cengage Learning.

Chicago Style (17. basım) Atıf

Guffey, Mary Ellen. Essentials of Business Communication. Tenth edition. Boston, MA: Cengage Learning, 2016.

MLA (9th ed.) Atıf

Guffey, Mary Ellen. Essentials of Business Communication. Tenth edition. Cengage Learning, 2016.