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. Federal Trade Commission,"Relative efficiency of large, medium-sized, and small business",,s.n.,1980,Investigation of concentration of economic power : monograph,,,,https://cir.nii.ac.jp/crid/1130000797185316352