@book{219672,
	author = {National Assessment of Education Progress (Project)},
	title = {Mathematics},
	publisher = {U.S. Dept. of Education, Office of Educational Research and Improvement},
	address = {Washington,D.C.},
	note = {Description based on first issue; title from PDF t.p. (viewed Nov.18,2008).},
	url = {http://purl.access.gpo.gov/GPO/LPS105510}
}