@book{79439,
	title = {A study of the effect of elemental sulfur and organc matter on the availability of manganese in calcareous soil /},
	publisher = {University Of Dhaka, },
	year = {1967.},
	address = {Dhaka : },
	note = {Thesis (MS )-- Department of Soil, Water & Environment, University of Dhaka,1967.}
}