@book{69039,
	author = {Ellis, Arthur K.},
	title = {Teaching and learning elementary social studies /},
	publisher = {Pearson/A & B,},
	year = {c2007.},
	address = {Boston :},
	edition = {8th ed.},
	url = {http://www.loc.gov/catdir/toc/fy0608/2005056457.html}
}