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. Congress. Senate. Committee on Agriculture and Forestry,"Dairy, environment, and conservation issues",,G.P.O. : CIS,1990,S. hrg.,,,,https://cir.nii.ac.jp/crid/1130282270370098432