@book{37185,
	author = {Kumar, Ranjan },
	title = {Crop growth and yield performances in the Two-Tier Cropping System of Sweet-Potato (Ipomoea Batatas Lam.)},
	publisher = {RAU, Dept. of Agronomy},
	year = {1982},
	address = {Pusa, Samastipur}
}