@book{137887,
	author = {Hansen, Edmund, and ebrary, Inc.},
	title = {Idea-based learning},
	publisher = {Stylus Pub.,},
	year = {2011.},
	address = {Sterling, Va. :},
	edition = {1st ed.},
	url = {http://site.ebrary.com/lib/rucke/Doc?id=10545769}
}