Mueller, R. K. (1978). New directions for directors: Behind the bylaws. Lexington.
Chicago Style aipamenaMueller, Robert Kirk. New Directions for Directors: Behind the Bylaws. Toronto: Lexington, 1978.
MLA aipamenaMueller, Robert Kirk. New Directions for Directors: Behind the Bylaws. Lexington, 1978.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.