@book{191615,
	author = {Bindu Madhav, U and Joshi, O. P},
	title = {Radio isotope tracer technique for ground water flow studies in hard rocks: SIDA Assisted ground water project in Noyil, Ponnani and Amaravati River basins, Tamil Nadu and Kerala Report 1:17},
	publisher = {Ministry of agriculture and irrigation},
	year = {1980},
	address = {coimbatore}
}