@book{41630,
	title = {Cytogenetic studies of the petients with down s syndrome and its relationship with maternal age / },
	publisher = {University of Dhaka,},
	year = {2000.},
	address = {Dhaka :},
	note = {Thesis (MS )--Department of Zoology, University of
Dhaka, Session : 1997-1998. 
}
}