Citazione Stile APA (7a Edizione)

Koenig, L. W. (1975). The Chief Executive (3rd ed.). Harcourt,Brace,and World.

Citazione stile Chigago Style (17a edizione)

Koenig, Louis William. The Chief Executive. 3rd ed. New York: Harcourt,Brace,and World, 1975.

Citatione MLA (9a ed.)

Koenig, Louis William. The Chief Executive. 3rd ed. Harcourt,Brace,and World, 1975.