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
"Van Valkenburg, Samuel and Erickson, Franklin C.",Elements of political geography,,Prentice-Hall,1939,Prentice-Hall geography series,,,,https://cir.nii.ac.jp/crid/1130000794255381248