APA aipamena

Campbell, G. M. (2009). Communications skills for project managers. New York: AMACOM.

Chicago Style aipamena

Campbell, G. Michael. Communications Skills for Project Managers. New York: AMACOM, 2009.

MLA aipamena

Campbell, G. Michael. Communications Skills for Project Managers. New York: AMACOM, 2009.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.