@book{91,
	author = {Fisher, Andrew,},
	title = {Handbook for family planning operations research design /},
	publisher = {Population Council,},
	year = {[1991]},
	address = {New York, N.Y. :},
	edition = {2nd ed.},
	note = {Rev. ed. of: Handbook for family planning operations research design / Andrew Fisher, John Laing, John Stoeckel. 2nd ed. 1983.}
}