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
"Vrooman, Carl Schurz",Grain farming in the corn belt with live stock as a side line,,U.S. Department of Agriculture,1916,Farmer's bulletin,,,,https://cir.nii.ac.jp/crid/1130282273227916544