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
"Higgs, Robert","Competition and coercion : Blacks in the American economy, 1865-1914",,Cambridge University Press,1977,Hoover Institution publication,,0521211204,,https://cir.nii.ac.jp/crid/1130000795255620992