一般注記"Supported as a national research and development center by funds from the Office of Educational Research and Improvement, U.S. Department of Education."
Distributed to depository libraries in microfiche
"May 1987."
"Grant no. OERI-G-86-0006."
Physical description for original version: iv, 126 p. : 28 cm
書誌注記Includes bibliographical references (p. 83-89)
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, [1987]
SUPTDOC番号: ED 1.310/2: 297418
GPO管理番号: 466-A-3 (MF)