一般注記"Supported in part by the National Institute of Education (contract # NIE 400-83-0041) ."
Distributed to depository libraries in microfiche
"June 1985."
Physical description for original version: 37, [37] p. : 28 cm
書誌注記Includes bibliographical references (p. [20], 2nd group)
原資料等に関する注記原資料の出版事項: Cambridge, MA : Educational Technology Center, Harvard Graduate School of Education, [1985]
SUPTDOC番号: ED 1.310/2: 291595
GPO管理番号: 466-A-3 (MF)