@book{3947,
	author = {Windham, Doughlas M. and Educational Research and Development Center (Yemen)},
	title = {Improving the Efficiency of Educational Systems Project. :},
	publisher = {IEES,},
	year = {1990},
	address = {Tallahassee, Fla., USA :},
	note = {"August 1984-1994."}
}