@book{50671,
	author = {Sinha, Gauri Shankar.},
	title = {Response of Sweet Potato (Ipomoea botatas Lam.) Varieties to Graded Levels of N. P. K. / },
	publisher = {: RAU},
	year = {, 1993},
	address = {.- Pusa, Samastipur}
}