@book{1842,
	author = {Vasta, Ross. and Haith, Marshall M.,},
	title = {Child psychology /},
	publisher = {John Wiley,},
	year = {c2009.},
	address = {Hoboken, NJ :},
	edition = {4th ed.},
	url = {http://www.loc.gov/catdir/description/wiley041/2004270031.html}
}