@book{24883,
	author = {Yawalkar, K. S and Agarwal , J.P. },
	title = {Manures and fertilizers/by K.S. Yawalkar, J.P. Agarwal and S. Bokde},
	publisher = {Agri-Horticultural Publishing House, },
	year = {2002.},
	address = {Nagpur: },
	edition = {9th.ed.}
}