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 "O'Regan, Gerard (Cornelius Gerard)","Guide to discrete mathematics : an accessible introduction to the history, theory, logic and applications",2nd ed,Springer,2021,Texts in computer science,,9783030815875,,https://cir.nii.ac.jp/crid/1130853243477183873