@book{41795,
	title = {Effects of variable temperatures and photoperiods on the biology of potato tuber moth, phthorimae operculella ( Zeller) (Lepidoptera : Gelechiidae) / },
	publisher = {University of Dhaka, },
	year = {1997.},
	address = {Dhaka : },
	note = {Thesis (M.Sc.) -- Department of Zoology , University of Dhaka, 1993-94. }
}