Digest of data on persons with disabilities / prepared under contract to the Congressional Research Service, Library of Congress ; prepared by Mathematica Policy Research, Inc. ; John L. Czajka, principal investigator
"Reprint with permission by the National Institute of Handicapped Research, Office of Special Education and Rehabilitative Services, U.S. Department o...
"Reprint with permission by the National Institute of Handicapped Research, Office of Special Education and Rehabilitative Services, U.S. Department of Education."
"June 1984."
Physical description for original version: xv, 177 p. : 28 cm
書誌注記
Bibliography: p. 154-155
原資料等に関する注記
原資料の出版事項: Washington, D.C. : U.S. Dept. of Education, [1984]