@book{332409,
	author = {National Research Council (U.S.).},
	title = {Sustainable agriculture research and education in the field :},
	publisher = {National Academy Press,},
	year = {1991.},
	address = {Washington, D.C. :},
	note = {Papers based on a workshop held in Washington, D.C., Apr. 3-4, 1990.}
}