Citazione Stile APA (7a Edizione)

Drucker , P. (1993). Managing for results. Harper Business.

Citazione stile Chigago Style (17a edizione)

Drucker , Peter. Managing for Results. New York: Harper Business, 1993.

Citatione MLA (9a ed.)

Drucker , Peter. Managing for Results. Harper Business, 1993.