एपीए उद्धरण

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

शिकागो स्टाइल उद्धरण

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

एमएलए उद्धरण

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