@book{102768,
	title = {Effects of three organophosphorus insecticides on shimghi fish heteropneustes fossilis (bloch) /},
	publisher = {University of Dhaka,},
	year = {1970.},
	address = {Dhaka :},
	note = {Thesis (MS) -- Department of Zoology, University of Dhaka, 1970.}
}