एपीए उद्धरण

Sudarshana Sharma & Vinit Kumar. (2013). Environmental science: A sustainable approach. Shree publishers.

शिकागो स्टाइल उद्धरण

Sudarshana Sharma और Vinit Kumar. Environmental Science: A Sustainable Approach. New Delhi: Shree publishers, 2013.

एमएलए उद्धरण

Sudarshana Sharma और Vinit Kumar. Environmental Science: A Sustainable Approach. Shree publishers, 2013.