एपीए उद्धरण

Sunil Kumar. CSIR UGC Physical sciences. Unique publishers.

शिकागो स्टाइल उद्धरण

Sunil Kumar. CSIR UGC Physical Sciences. New Delhi: Unique publishers.

एमएलए उद्धरण

Sunil Kumar. CSIR UGC Physical Sciences. Unique publishers.