Citazione Stile APA (7a Edizione)

Bennett, J. M. (1991). Four powers of communication: Skills for effective learning. McGraw-Hill.

Citazione stile Chigago Style (17a edizione)

Bennett, J. Michael. Four Powers of Communication: Skills for Effective Learning. New York: McGraw-Hill, 1991.

Citatione MLA (9a ed.)

Bennett, J. Michael. Four Powers of Communication: Skills for Effective Learning. McGraw-Hill, 1991.