@book{2109,
	author = {Siegler, Robert S. and DeLoache, Judy S.},
	title = {How children develop /},
	publisher = {Worth Publishers,},
	year = {c2006.},
	address = {New York :},
	edition = {2nd ed.},
	url = {http://www.loc.gov/catdir/enhancements/fy0912/2005040713-d.html}
}