APA استشهاد

Singh, S. (2010). Geography: For the UPSC Civil Services preliminary examination (3rd ed.). TMH.

استشهاد بنمط شيكاغو

Singh, Surender. Geography: For the UPSC Civil Services Preliminary Examination. 3rd ed. New Delhi: TMH, 2010.

MLA استشهاد

Singh, Surender. Geography: For the UPSC Civil Services Preliminary Examination. 3rd ed. TMH, 2010.