@book{10828,
	author = {Swinkels, Rob A. and Scherr, Sara J. and International Council for Research in Agroforestry.},
	title = {Economic analysis of agroforestry technologies :},
	publisher = {International Council for Research in Agroforestry,},
	year = {c1991.},
	address = {Nairobi, Kenya :},
	note = {Includes indexes.}
}