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
"Freeman, Donald B.","International trade, migration, and capital flows : a quantitative analysis of spatial economic interaction",,"University of Chicago, Dept. of Geography",1973,Research paper,,,,https://cir.nii.ac.jp/crid/1130000795008894080