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 "Du Plessis, Nicolaas",An introduction to potential theory,,"Oliver & Boyd,Hafner",1970,University mathematical monographs,,0050020544,,https://cir.nii.ac.jp/crid/1130000798244360704