@book{43235,
	title = {Biosystematic studies of water hyacinth (Eichhornia Crassipes (Mart.) Solms) /},
	publisher = {University of Dhaka,},
	year = {1993.},
	address = {Dhaka :},
	note = {Thesis (PhD) Department of Botany, University of Dhaka, 1993.}
}