一般注記"ViGYAN, Inc."
Distributed to depository libraries in microfiche
"May 1991"--Cover
Physical description for original version: 109 p. ; 28 cm
書誌注記Includes bibliographical references (p. 22-23)
原資料等に関する注記原資料の出版事項: [Washington, D.C.?] ; [Springfield, Va. : National Aeronautics and Space Administration, Office of Management, Scientific and Technical Information Division : For sale by the National Technical Information Service], 1991
SUPTDOC番号: NAS 1.26: 4372
GPO管理番号: 0830-H-14 (MF)