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 Labor Statistics,Technological change and its impact on labor in four industries : coal mining/pharmaceutical preparations/metalworking machinery/eating and drinking places,,"U.S. Dept. of Labor, Bureau of Labor Statisitics : For sale by the U.S. G.P.O., Supt. of Docs.",1992,Bulletin,,0160382041,,https://cir.nii.ac.jp/crid/1130282269248742912