APA aipamena

Murphy, H. A. &. o. Effective Business Communication - 7th Ed. 2008.

Chicago Style aipamena

Murphy, Herta A. & others. Effective Business Communication - 7th Ed. 2008.

MLA aipamena

Murphy, Herta A. & others. Effective Business Communication - 7th Ed. 2008.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.