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 "Straszewicz, S. (Stefan) and Smólska, Janina",Mathematical problems and puzzles from the Polish mathematical olympiads,[1st English ed.],"Pergamon Press,PWN-Polish Scientific Publishers",1965,Popular lectures in mathematics,,,,https://cir.nii.ac.jp/crid/1130282269247442304