一般注記"Funds from the Office of Educational Research and Improvement, U.S. Department of Education."
Distributed to depository libraries in microfiche
"July 1988."
"Grant no. OERI-G-86-90006."
Physical description for original version: 22 p.
書誌注記Includes bibliographical references (p. 14-17)
原資料等に関する注記原資料の出版事項: Baltimore, Md. : Center for Research on Elementary and Middle Schools, Johns Hopkins University, [1988]
SUPTDOC番号: ED 1.310/2: 301320
GPO管理番号: 466-A-3 (MF)