एपीए उद्धरण

(1980). Civil Service Examination ; IAS Preliminary Screening Test. Sudha.

शिकागो स्टाइल उद्धरण

Civil Service Examination ; IAS Preliminary Screening Test. New Delhi: Sudha, 1980.

एमएलए उद्धरण

Civil Service Examination ; IAS Preliminary Screening Test. Sudha, 1980.