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
"Willard, Rex E.","A farm management study of cotton farms of Ellis County, Texas : a statistical study of the investment in land and equipment, cost of operation and of production of crops, and income from different types of tenure in 1914",,Government Printing Office,1918,Bulletin,,,,https://cir.nii.ac.jp/crid/1130000798147682816