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 "Silverman, Richard A. and Gelʹfand, S. I. (Sergeĭ Izrailevich)",Learn limits through problems!,Rev. English ed. / translated and freely adapted by Richard A. Silverman,Gordon and Breach,1969,The pocket mathematical library,,,,https://cir.nii.ac.jp/crid/1130282270013647616