@book{69147,
	author = {Raychaudhuri, Satya Prasad, and Datta, Narayan Pada,},
	title = {Phosphorous and potassium status of Indian soils},
	publisher = {Indian Council of Agricultural Research},
	year = {[1964]},
	series = {I.C.A.R. review series, bull.},
	address = {New Delhi,}
}