@book{8640,
	author = {McTighe, Jay. and Wiggins, Grant P., and ebrary, Inc.},
	title = {Essential questions},
	publisher = {ASCD,},
	year = {c2013.},
	address = {Alexandria, Va. :},
	url = {http://site.ebrary.com/lib/rucke/Doc?id=10696666}
}