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
"Northwestern University (Evanston, Ill.). Dept. of Geography",The rural land classification program of Puerto Rico,,"Dept. of Geography, Northwestern University",1952,Northwestern University studies in geography,,,,https://cir.nii.ac.jp/crid/1130000797023113472