by Robert W. Howe ... [and others] ; Erwin Flaxman, general editor ; prepared by Council of ERIC Directors, Educational Resources Information Center, Office of Educational Research and Improvement, U.S. Department of Education
by Thomas I. Ellis ... [and others] ; Erwin Flaxman, general editor ; prepared by Council of ERIC Directors, Educational Resources Information Center, Office of Educational Research and Improvement, U.S. Department of Education