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
"Tolley, H. R. (Howard Ross) and Humphries, W. R. (Walter Raymond)","Tractors and horses in the winter wheat belt : Oklahoma, Kansas, Nebraska",,Government Printing Office,1924,Department Bulletin,,,,https://cir.nii.ac.jp/crid/1130282273357261952