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. Bureau of the Census,"Estimates of labor force, employment, and unemployment in the United States, 1940 and 1930",,U.S. Govt. Print. Off.,1944,"Sixteenth census of the United States, 1940",,,,https://cir.nii.ac.jp/crid/1130282270638494976