@book{191648,
	author = {Gupta, A. A and Sharma, V. P},
	title = {Surface water quality: SIDA Assisted ground water project in Noyil, Ponnani and Amaravati River basins, Tamil Nadu and Kerala Report 3:3},
	publisher = {Ministry of agriculture and irrigation},
	year = {1980},
	address = {Coimbatore}
}