Citazione Stile APA (7a Edizione)

Fisher, L. (1972). President and Congress: Power and policy. The Free Pr..

Citazione stile Chigago Style (17a edizione)

Fisher, Louis. President and Congress: Power and Policy. New York: The Free Pr., 1972.

Citatione MLA (9a ed.)

Fisher, Louis. President and Congress: Power and Policy. The Free Pr., 1972.