@book{153622,
	author = {Mertens, Donna M. and ebrary, Inc.},
	title = {Mixed methods and credibility of evidence in evaluation},
	publisher = {Jossey-Bass,},
	year = {c2013.},
	series = {New Directions for Evaluation ;},
	address = {[San Francisco, Calif.] :},
	note = {"Summer 2013."},
	url = {http://site.ebrary.com/lib/rucke/Doc?id=10722544}
}