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
[1994]
Series
Report (National Assessment of Educational Progress (Project)) ; no. 23-ST-09
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
Date
[1993]
Series
Report (National Assessment of Educational Progress (Project)) ; no. 23-ST-02
Christine Y. O'Sullivan ... [and others] ; prepared by the Educational Testing Service under a cooperative agreement with the National Center for Education Statistics
Christine Y. O'Sullivan ... [and others] ; prepared by Educational Testing Service under a cooperative agreement with the National Center for Education Statistics