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 "Roll, James A.","Mortgage and real estate investments of Nebraska's domestic life insurance companies, 1947-1956",,[University of Nebraska],1960,University of Nebraska publication,,,,https://cir.nii.ac.jp/crid/1130282269083708672