一般注記Distributed to depository libraries in microfiche
"July 1989."
Physical description for original version: iii, 21 p. : 28 cm
書誌注記Includes bibliographical references (p. 21)
原資料等に関する注記原資料の出版事項: [Boulder, CO] ; Springfield, VA : U.S. Dept. of Commerce, National Telecommunications and Information Administration : For sale by the National Technical Information Servics, [1989]
SUPTDOC番号: C 60.10: 89-245
GPO管理番号: 0126-D-03 (MF)