APA (7th ed.) Zitazioa

Ober, S. (1998). Contemporary business communication (3rd ed.). Houghton Mifflin.

Chicago Style (17th ed.) Zitazioa

Ober, Scot. Contemporary Business Communication. 3rd ed. Boston: Houghton Mifflin, 1998.

MLA (9th ed.) Zitazioa

Ober, Scot. Contemporary Business Communication. 3rd ed. Houghton Mifflin, 1998.