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 "Polya, George",How to solve it : a new aspect of mathematical method,2nd ed,Princeton University Press,1971,Princeton paperbacks,,"0691080976,0691023565",,https://cir.nii.ac.jp/crid/1130282270337654912