http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
What mathematics do students know and how is that knowledge changing?
evidence from the National Assessment of Educational Progress
1 online resource (xiii, 349 pages): text file, PDF.
edited by Peter Kloosterman, Doris Mohr, Crystal Walcott.
National Assessment of Educational Progress (Project)