APA সাইটেশন

Bagby, W. M. (1999). America's international relations since World War I. New York: Oxford University Press.

শিকাগো স্টাইলে সাইটেশন

Bagby, Wesley Marvin. America's International Relations Since World War I. New York: Oxford University Press, 1999.

এমএলএ সাইটেশন

Bagby, Wesley Marvin. America's International Relations Since World War I. New York: Oxford University Press, 1999.