Gifford, P., & ed. The National interests of the United States in foreign policy. University Press of America.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रGifford, Prosser, और ed. The National Interests of the United States in Foreign Policy. Washington, D.C.: University Press of America.
एमएलए (9वां संस्करण) प्रशस्ति पत्रGifford, Prosser, और ed. The National Interests of the United States in Foreign Policy. University Press of America.
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