@book{98916,
	author = {Erekson, James A., and Opitz, Michael F.,},
	title = {Engaging minds in social studies classrooms :},
	publisher = {ASCD,},
	year = {2014.},
	address = {Alexandria, Virginia :},
	url = {http://site.ebrary.com/lib/rucke/Doc?id=10848796}
}