@book{50470,
	author = {Singh, Subhash Chandra},
	title = {Effect of Long term Application of N.P.K Irrigation and Organic Manure on Soil Fertility and Yield and Quality of Chewing Tobacco (Nicotina Tabacum L.)},
	publisher = {RAU},
	year = {1981},
	address = {Pusa, Samastipur}
}