@book{351773,
	author = {Zellman, Gail L.;Perlman, Michal;Le, Vi-Nhuan;Setodji, Claude Messan},
	title = {Assessing the Validity of the Qualistar Early Learning Quality Rating and Improvement System as a Tool for Improving Child-Care Quality},
	publisher = {RAND Corporation},
	year = {2008},
	url = {www.jstor.org/stable/10.7249/mg650qel}
}