Manjunath, D. (2007). Environmental studies. Pearson Education.
Chicago-čujuhus (17. p.)Manjunath, D.L. Environmental Studies. New Delhi: Pearson Education, 2007.
MLA-čujuhus (9. p.)Manjunath, D.L. Environmental Studies. Pearson Education, 2007.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.