Jay R. Campbell and Kent P. Ashworth, editors ; prepared by Educational Testing Service under contract with the National Center for Education Statistics
prepared for the Office for Educational Research and Improvement, Center for Education Statistics, under grant no. NIE-G-83-0011 ; by the National Assessment of Educational Progress
prepared for the Office for Educational Research and Improvement, Center for Education Statistics, under grant no. NIE-G-83-0011 ; by the National Assessment of Educational Progress