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 "Naber, Gregory L.",Spacetime and singularities : an introduction,,Cambridge University Press,1988,London Mathematical Society student texts,,"052133327X,0521336120",,https://cir.nii.ac.jp/crid/1130000797376897280