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. Dept. of Agriculture,"Fluctuations in crops and weather, 1866-1948",,U.S. Dept. of Agriculture,1951,Statistical bulletin,,,,https://cir.nii.ac.jp/crid/1130282272871300736