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
"Truesdell, Leon E. and United States. Bureau of the Census","Farm population of the United States : an analysis of the 1920 farm population figures, especially in comparison with urban data, together with a study of the main economic factors affecting the farm population",,Govt. Print. Off.,1926,Census monographs,,,,https://cir.nii.ac.jp/crid/1130000794581538944