著者名,書名,版表示,出版者名,出版年,シリーズ名,番号,ISBN,ISSN,URL United States. Bureau of the Census,Geographic area statistics,,"U.S. Dept. of Commerce, Bureau of the Census : For sale by Supt. of Docs., U.S. G.P.O.",1981,1977 census of service industries,,,,https://cir.nii.ac.jp/crid/1130282270930090368