@book{140143,
	author = {Prance, Ghillean T. and Institute of Economic Botany New York Botanical Garden},
	title = {New directions in the study of plants and people},
	publisher = {New York Botanical Garden},
	year = {1990.},
	series = {Advances in economic botany},
	address = {Bronx, N.Y., U.S.A.}
}