Citazione Stile APA (7a Edizione)

Ober, S. (2003). Contemporary business communication (5th ed.). Houghton Mifflin Co..

Citazione stile Chigago Style (17a edizione)

Ober, Scot. Contemporary Business Communication. 5th ed. Boston: Houghton Mifflin Co., 2003.

Citatione MLA (8a ed.)

Ober, Scot. Contemporary Business Communication. 5th ed. Houghton Mifflin Co., 2003.