@book{103292,
	author = {Frey, Nancy, and Fisher, Douglas, and ebrary, Inc.},
	title = {Productive group work},
	publisher = {ASCD,},
	year = {c2009.},
	address = {Alexandria, Va. :},
	url = {http://site.ebrary.com/lib/rucke/Doc?id=10381783}
}