APA استشهاد

N D Arora. (2011). Political Science: For civil services main examination. Tata McGraw Hill.

استشهاد بنمط شيكاغو

N D Arora. Political Science: For Civil Services Main Examination. New Delhi: Tata McGraw Hill, 2011.

MLA استشهاد

N D Arora. Political Science: For Civil Services Main Examination. Tata McGraw Hill, 2011.