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
"Swinson, Carl R. (Carl Robert)","Incomes from farming and cost of apple production in the Shenandoah Valley, Frederick County, Va.",,U.S. Department of Agriculture,1927,Department Bulletin,,,,https://cir.nii.ac.jp/crid/1130282270696844544