@book{81369,
	title = {The relative effectiveness in nitrigen fixation by certain legumes and the effect of insecticide on th bacterinal-plant association /},
	publisher = {University Of Dhaka, },
	year = {1976.},
	address = {Dhaka : },
	note = {Thesis (MS )-- Department of Soil, Water & Environment, University of Dhaka,1976.}
}