@book{5559,
	author = {Mayes, Linda C. and Cohen, Donald J. and Yale University.},
	title = {The Yale Child Study Center guide to understanding your child :},
	publisher = {Little, Brown,},
	year = {c2002.},
	address = {Boston :},
	edition = {1st ed.},
	note = {Includes index.},
	url = {http://www.loc.gov/catdir/toc/fy022/00039116.html}
}