@book{1884,
	author = {Knutson, Lloyd V.,  and Beltsville Agricultural Research Center.},
	title = {Biotic diversity and germplasm preservation, global imperatives /},
	publisher = {Kluwer Academic, },
	year = {1989},
	series = {Beltsville symposiain agricultural research ;},
	address = {Dordrecht, The Netherlands :},
	note = {Beltsville symposium XIII was sponsored by the Beltsville area, Agricultural Research Service, U.S. Department of Agriculture, with the Cooperation of friends of Agricultural Research - Beltsville}
}