@book{109920,
	title = {Studies on the nature of infestation of Musterd Aphid, Lipaphis erysimi (kaltenback) (homoptera : aphidae) /},
	publisher = {University of Dhaka,},
	year = {1975.},
	address = {Dhaka :},
	note = {Thesis (MS ) -- Department of Zoology, University of Dhaka, 1975.}
}