APA সাইটেশন

Gopa Kumar, G. (2011). Foreign policy, federalism and international treaties. New Century.

শিকাগো স্টাইলে সাইটেশন

Gopa Kumar, G.,ed. Foreign Policy, Federalism and International Treaties. New Delhi: New Century, 2011.

এমএলএ সাইটেশন

Gopa Kumar, G.,ed. Foreign Policy, Federalism and International Treaties. New Century, 2011.