Physical description for original version: vii, 19 p. : 28 cm
書誌注記
Includes bibliographical references (p. vii)
原資料等に関する注記
原資料の出版事項: Washington, DC ; Springfield, Va. : U.S. Dept. of Energy : Available from the National Technical Information Service, U.S. Dept. of Commerce, [1989?]