@book{87165,
	title = {Effect of certain chelting agents on the availabilty of native and added phosphorus in a red soil of Dacca /},
	publisher = {University Of Dhaka, },
	year = {1967.},
	address = {Dhaka : },
	note = {Thesis (MS )-- Department of Soil, Water & Environment, University of Dhaka,1967.}
}