@book{118794,
	author = {Smith, Nick L.},
	title = {Metaphors for evaluation :},
	publisher = {Sage Publications,},
	year = {c1981.},
	series = {New perspectives in evaluation ;},
	address = {London :},
	url = {http://www.loc.gov/catdir/enhancements/fy0660/81005344-d.html}
}