APA সাইটেশন

Beer,Samuel H. (1978). The new American political system. Ambika Publication.

শিকাগো স্টাইলে সাইটেশন

Beer,Samuel H. The New American Political System. New Delhi: Ambika Publication, 1978.

এমএলএ সাইটেশন

Beer,Samuel H. The New American Political System. Ambika Publication, 1978.