Varkey, P. K., & Sivasankara Pillai. (2002). Water quality variations, its influences on drinking water treatment and remedial measures: A case study of peechi reservoir, Thrissur, Kerala. School of Environmental studies.
Trích dẫn kiểu ChicagoVarkey, Peeter K., và Sivasankara Pillai. Water Quality Variations, Its Influences on Drinking Water Treatment and Remedial Measures: A Case Study of Peechi Reservoir, Thrissur, Kerala. Kochi: School of Environmental studies, 2002.
Trích dẫn MLAVarkey, Peeter K., và Sivasankara Pillai. Water Quality Variations, Its Influences on Drinking Water Treatment and Remedial Measures: A Case Study of Peechi Reservoir, Thrissur, Kerala. School of Environmental studies, 2002.
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