Stephen L. Koffler ... [and others] ; prepared by Educational Testing Service under contract with the National Center for Education Statistics, Office of Educational Research and Improvement, U.S. Department of Education
Date
[1991]
Series
Report (National Assessment of Educational Progress (Project)) ; no. 21-ST-01
Karl O. Haigler ... [and others] ; prepared by Educational Testing Service under contract with the National Center for Education Statistics, Office of Educational Research and Improvement, U.S. Department of Education
Jay R. Campbell ... [and others] ; prepared by Educational Testing Service under contract with the National Center for Education Statistics, Office of Educational Research and Improvement, U.S. Department of Education
by Ina V.S. Mullis ... [and others] ; prepared by Educational Testing Service under contract with the National Center for Education Statistics, Office of Educational Research and Improvement, U.S. Department of Education
by Ina V.S. Mullis ... [and others] ; prepared by Educational Testing Service under contract with the National Center for Education Statistics, Office of Educational Research and Improvement, U.S. Department of Education