Cita APA (7a ed.)

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

Cita Chicago Style (17a ed.)

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

Cita MLA (9a ed.)

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