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
"Bowles, Gladys K. and United States. Agricultural Marketing Service","Farm population : net migration from the rural-farm population, 1940-50",,"U.S. Dept. of Agriculture, Agricultural Marketing Service",1956,Statistical bulletin,,,,https://cir.nii.ac.jp/crid/1130282269073080832