APA način citiranja

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.

Čikaški stil citiranja

Varkey, Peeter K., i 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 način citiranja

Varkey, Peeter K., i 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.