@book{219673,
	author = {National Assessment of Educational Progress Project},
	title = {Mathematics...,trial urban district assessment result at grades 4 and 8},
	publisher = {U.S. Dept. of Education, Institute of Education Sciences, National Center for Education Statistics},
	address = {Washington,D.C.},
	note = {Descriptionbased on: 2005; title from title screen(viewed May 5, 2009).},
	url = {http://purl.access.gpo.gov/GPO/LPS73356}
}