Weiss, Iris R.
Research Triangle Park, N.C. : Center for Educational Research and Evaluation ; Washington : for sale by the Supt. of Docs., U.S. Govt. Print. Off., 1978.
Research Triangle Institute. Center for Educational Research and Evaluation.
Washington : Dept. of Health, Education, and Welfare, Education Division, Office of Education, Office of Planning, Budgeting, and Evaluation, 1976-
