@book{47993,
	author = {Rahman, Obaidur},
	title = {Spatial pattern of adoption of high yeilding varieties (HYVs) of rice and wheat and ita input and output characteristics in a controlled Area, Kaultia union, Bangladesh /},
	publisher = {University of Dhaka,},
	year = {1983.},
	address = {Dhaka :},
	note = {Thesis (MS) -- Department of Geography, University of Dhaka, 1983.}
}