एपीए उद्धरण

Ramesh Singh. (2017). Contemporary essays: For civil services examinations (2.). McGraw Hill Education (India) Pvt Ltd.

शिकागो स्टाइल उद्धरण

Ramesh Singh. Contemporary Essays: For Civil Services Examinations. 2. New Delhi: McGraw Hill Education (India) Pvt Ltd, 2017.

एमएलए उद्धरण

Ramesh Singh. Contemporary Essays: For Civil Services Examinations. 2. McGraw Hill Education (India) Pvt Ltd, 2017.