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 "Gsänger, Hans and Schmidt, Günter, fl.",Decontrolling the maize marketing system in Kenya,,"Institute for Development Studies, University of Nairobi",1977,Discussion paper,,,,https://cir.nii.ac.jp/crid/1130000796008031104