Citazione Stile APA (7a Edizione)

Gifford, P., & ed. The National interests of the United States in foreign policy. University Press of America.

Citazione stile Chigago Style (17a edizione)

Gifford, Prosser, e ed. The National Interests of the United States in Foreign Policy. Washington, D.C.: University Press of America.

Citatione MLA (9a ed.)

Gifford, Prosser, e ed. The National Interests of the United States in Foreign Policy. University Press of America.