@book{224970,
	author = {Hale, Judith A. and ebrary, Inc.},
	title = {Performance-based certification},
	publisher = {Pfeiffer,},
	year = {c2012.},
	address = {San Francisco :},
	edition = {2nd ed.},
	note = {Includes index.},
	url = {http://site.ebrary.com/lib/rucke/Doc?id=10517345}
}