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
"Valgren, Victor Nelson and United States. Dept. of Agriculture",Hail insurance on farm crops in the United States,,U.S. Dept. of Agriculture,1920,Bulletin,,,,https://cir.nii.ac.jp/crid/1130000796849234048