@book{2272,
	author = {Devlin, John F and Devlin, John F. and University of Guelph.},
	title = {Ecoagriculture :},
	publisher = {Weaver Press,},
	year = {1999.},
	series = {Environmental round table series},
	address = {Avondale, Harare, Zimbabwe :},
	note = {"University of Guelph."}
}