@book{28948,
	author = {Singh, N.P. and Singh, R.A.},
	title = {Scientific crop production with special reference to north eastern hill region/by N.P. Singh and R.A.Singh},
	publisher = {Kalyani Publishers;},
	year = {2005.},
	address = {Ludhiana:},
	edition = {1st.ed.}
}