@book{197128,
	author = {Arsenio, William Frank. and NICHD Early Child Care Research Network.},
	title = {Trajectories of physical aggression from toddlerhood to middle childhood :},
	publisher = {Blackwell ,},
	year = {2004.},
	series = {Monographs of the Society for Research in Child Development},
	address = {Boston, Mass. :}
}