Harish Kumar. (2001). Environmental health hazards. Sarup & Sons.
Chicago Stili AlıntıHarish Kumar. Environmental Health Hazards. New Delhi: Sarup & Sons, 2001.
MLA AlıntıHarish Kumar. Environmental Health Hazards. Sarup & Sons, 2001.
Uyarı: Bu alıntı herzaman %100 doğru olmayabilir..