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.
استشهاد بنمط شيكاغوVarkey, Peeter K., و 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.
MLA استشهادVarkey, Peeter K., و 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.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.