Cita APA (7a ed.)
Gupta, O. P. (2016). Elements of environmental pollution control. Khanna Book Publishing Co.
Cita Chicago Style (17a ed.)
Gupta, Om Prakash. Elements of Environmental Pollution Control. New Delhi: Khanna Book Publishing Co, 2016.
Cita MLA (9a ed.)
Gupta, Om Prakash. Elements of Environmental Pollution Control. Khanna Book Publishing Co, 2016.
Precaución: Estas citas no son 100% exactas.