APA aipamena

Cohen, W. A. (1990). The art of the leader. New Jersey: Prentice Hall.

Chicago Style aipamena

Cohen, William A. The Art of the Leader. New Jersey: Prentice Hall, 1990.

MLA aipamena

Cohen, William A. The Art of the Leader. New Jersey: Prentice Hall, 1990.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.