Cita APA (7th ed.)

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

Cita Chicago (17th ed.)

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

Cita MLA (9th ed.)

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