@book{101568,
	author = {Guerra-L�opez, Ingrid. and ebrary, Inc.},
	title = {Evaluating impact},
	publisher = {HDR Press,},
	year = {c2007.},
	series = {Defining and delivering successful professional practice -- HTP in action series ;},
	address = {Amherst, Mass. :},
	url = {http://site.ebrary.com/lib/rucke/Doc?id=10379739}
}