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 "Walrath, Arthur J. and Virginia Polytechnic Institute and State University. School of Forestry and Wildlife Resources",Evaluation of investment opportunities : tools for decisionmaking in farming and other businesses,,"U. S. Dept. of Agriculture, Economic Research Service in cooperation with College of Agriculture and Life Sciences, Virginia Polytechnic Institute and State University : for sale by the Supt. of Docs., U.S. Govt. Print. Off.",1977,Agriculture handbook,,,,https://cir.nii.ac.jp/crid/1130000795605851392