Yadav, M. (2009). Environment studies. Arise Publishers & Distributors.
Lua i Stíl Chicago (17ú heag.)Yadav, M.S. Environment Studies. New Delhi: Arise Publishers & Distributors, 2009.
Lua MLA (9ú heag.)Yadav, M.S. Environment Studies. Arise Publishers & Distributors, 2009.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.