APA-viite

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

Chicago-tyylinen lähdeviittaus

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

MLA-viite

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