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,"Number of inhabitants : total population for states, counties, and minor civil divisions, for urban and rural areas, for incorporated places, for metropolitan districts, and for census tracts",,U.S. Govt. Print. Off.,1942,"Sixteenth census of the United States, 1940",,,,https://cir.nii.ac.jp/crid/1130000793859431168