एपीए उद्धरण

Gupta's Joint CSIR - UGC NET physical sciences. Ramesh Pub House.

शिकागो स्टाइल उद्धरण

Gupta's Joint CSIR - UGC NET Physical Sciences. New Delhi: Ramesh Pub House.

एमएलए उद्धरण

Gupta's Joint CSIR - UGC NET Physical Sciences. Ramesh Pub House.