@book{5999,
	author = {Rutman, Leonard.},
	title = {Planning useful evaluations :},
	publisher = {Sage Publications,},
	year = {c1986.},
	series = {Sage library of social research ; v. 96},
	address = {London :},
	url = {http://www.loc.gov/catdir/enhancements/fy0660/79024116-d.html}
}