@book{25110,
	author = {Shukla, R.S.  and Chandel, P.S.},
	title = {Plant ecology and soil science/by R.S. Shukla and P.S. Chandel},
	publisher = {S.Chand & Co.},
	year = {1998.},
	address = {New Delhi:},
	edition = {1st.ed.}
}