APA citiranje

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

Chicago Edition Citation

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

MLA citiranje

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