APA aipamena

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

Chicago Style aipamena

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

MLA aipamena

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