@book{42144,
	title = {Life history pattern of potato tuber moth phthorimaea operculella (zeller) (lepidoptera : gelechiidea) on different potato varieties},
	publisher = {University of Dhaka, },
	year = {2000.},
	address = {Dhaka :},
	note = {Thesis (MS )--Department of Zoology, University of Dhaka, Session : 1997-1998.}
}