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
"Green, D. A. G. (David A. G.)",Ethiopia : an economic analysis of technological change in four agricultural production systems,,"African Studies Center in cooperation with Institute of International Agriculture, Michigan State University",1974,Occasional papers series,,,,https://cir.nii.ac.jp/crid/1130000794515351552