@book{79480,
	title = {A study on the PH of soils of East Pakistan and the important factors that affectd in the variation of soil PH /},
	publisher = {University Of Dhaka, },
	year = {1966.},
	address = {Dhaka : },
	note = {Thesis (MS )-- Department of Soil, Water & Environment, University of Dhaka,1966.}
}