APA সাইটেশন

Hartley,Keith, & Sandler,Todd. (1999). Political economy of NATO: Past, present and into the 21st century. Cambridge University Press.

শিকাগো স্টাইলে সাইটেশন

Hartley,Keith, এবং Sandler,Todd. Political Economy of NATO: Past, Present and into the 21st Century. New York: Cambridge University Press, 1999.

এমএলএ সাইটেশন

Hartley,Keith, এবং Sandler,Todd. Political Economy of NATO: Past, Present and into the 21st Century. Cambridge University Press, 1999.