APA način citiranja (7. izdanje)
Gupta, O. P. (2016). Elements of environmental pollution control. Khanna Book Publishing Co.
Čikaški stil citiranja (17. izdanje)
Gupta, Om Prakash. Elements of Environmental Pollution Control. New Delhi: Khanna Book Publishing Co, 2016.
MLA način citiranja (9. izdanje)
Gupta, Om Prakash. Elements of Environmental Pollution Control. Khanna Book Publishing Co, 2016.
Upozorenje: Ovi citati možda nisu uvijek 100% točni.