Wagenaar, Theodore C.
Washington, D.C. : Center for Education Statistics, Office of Educational Research and Improvement, U.S. Dept. of Education : For sale by the Supt. of Docs., U.S. G.P.O., 1987.
Washington, D.C. : Center for Education Statistics, Office of Educational Research and Improvement, U.S. Dept. of Education : For sale by the Supt. of Docs., U.S. G.P.O., 1987.
Byce, Charles R.
Washington, D.C. : U.S. Dept. of Education, Office of Educational Research and Improvement : For sale by the U.S. G.P.O., Supt. of Docs., [1992]
Barro, Stephen M.
[Washington, D.C.] : Center for Education Statistics, Office of Educational Research and Improvement, U.S. Dept. of Education : For sale by the Supt. of Docs., U.S. G.P.O., 1987.