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
"Knowlton, Harry E. and Elwood, Robert B. and McKibben, Eugene G.",Changes in technology and labor requirements in crop production : potatoes,,"Works Progress Administration, National Research Project",1938,Report,,,,https://cir.nii.ac.jp/crid/1130282272648177408