@book{43161,
	author = {Hassan, Md. Abul},
	title = {Systematic studies in the genus polygonum L. (s.l.) from Bangladesh /},
	publisher = {University of Dhaka, },
	year = {1989.},
	address = {Dhaka :},
	note = {Thesis (PhD )--Department of Botany, University of Dhaka, Session : 1985-1986.}
}