Manjunath, D. L. (2007). Environmental Studies. Pearson Education.
Lua i Stíl Chicago (17ú heag.)Manjunath, D. L. Environmental Studies. New Delhi: Pearson Education, 2007.
Lua MLA (8ú heag.)Manjunath, D. L. Environmental Studies. Pearson Education, 2007.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.