http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Conference on the Low Achiever in Mathematics
U.S. Department of Health, Education and Welfare
Report of a conference held in Washington, D.C. March 25-27, 1964, sponsored jointly by the U.S. Office of Education and the National Council of Teachers of Mathematics
United States, Office of Education : Bulletin 31