Physical description for original version: xi, 10 p. : 28 cm
書誌注記
Includes bibliographical references: (p. xi)
原資料等に関する注記
原資料の出版事項: Washington, DC : U.S. Dept. of Commerce, Economic and Statistics Administration : Bureau of the Census : For sale by Supt. of Docs., U.S. G.P.O., [1994]