@book{1504,
	title = {Soils and agro-ecological environments of sri lanka.},
	publisher = {Natural Resources, Energy & Science Authority of Sri Lanka,},
	year = {1996.},
	address = {[S.l.] :},
	url = {http://www.amazon.com/exec/obidos/ASIN/9555900051/chopaconline-20}
}