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 United States. Congress. Senate. Committee on Agriculture and Forestry,"Reports by members of grain futures exchanges : letter from the secretary of agriculture transmitting in response to Senate Resolution no. 40(70th congress), Part 2 of a report concerning the effect upon producers of grain of the suspension during the period from February 26, 1927, to October 31, 1927, of the requirement for the making of reports by members of grain futures exchanges",,U.S. Govt. Print. Off.,1930,Document,,,,https://cir.nii.ac.jp/crid/1130000797640898816