一般注記Distributed to depository libraries in microfiche
Paper version no longer available for sale by the Supt. of Docs
"April 1994"--P. [4] of cover
"OTA-TCT-592"--P. [4] of cover
Physical description for original version: vii, 84 p. : 28 cm
書誌注記Includes bibliographical references and index
原資料等に関する注記原資料の出版事項: Washington, DC : Office of Technology Assessment, U.S. Congress, [1994]
SUPTDOC番号: Y 3.T 22/2: 2 SO 1/2
テクニカルリポート番号: OTA-TCT-592
GPO管理番号: 1070-M (MF)