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 "Sanford, David H.","If P, Then Q : conditionals and the foundations of reasoning",New ed,Routledge,1992,The problems of philosophy : their past and present,,0415079942,,https://cir.nii.ac.jp/crid/1130282269831024000