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
"Summers, Robert S. and White, James J. and Speidel, Richard E.",Commercial law : teaching materials,4th ed,West Pub. Co.,1987,American casebook series,,0314405046,,https://cir.nii.ac.jp/crid/1130282272495455360