Kumar, R. (1987). Environmental pollution and health hazards in India. Ashish.
Chicago-čujuhus (17. p.)Kumar, R. Environmental Pollution and Health Hazards in India. New Delhi: Ashish, 1987.
MLA-čujuhus (9. p.)Kumar, R. Environmental Pollution and Health Hazards in India. Ashish, 1987.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.