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 Hillman, Robert A.","Contract and related obligation : theory, doctrine, and practice",2nd ed,West,1992,American casebook series,,0314001735,,https://cir.nii.ac.jp/crid/1130282268841626368