APA استشهاد

SP Agnihotri and HS Agarwal. (1980). RAtnas UPSC Guide in Economics for Civil Services Preliminary Examination (2nd ed.). Ratan.

استشهاد بنمط شيكاغو

SP Agnihotri and HS Agarwal. RAtnas UPSC Guide in Economics for Civil Services Preliminary Examination. 2nd ed. Agra: Ratan, 1980.

MLA استشهاد

SP Agnihotri and HS Agarwal. RAtnas UPSC Guide in Economics for Civil Services Preliminary Examination. 2nd ed. Ratan, 1980.