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
"Jahnke, Hans E. and Kirschke, Dieter and Lagemann, Johannes and Billing, K. J.",The impact of agricultural research in tropical Africa : a study of the collaboration between the international and national research systems,,World Bank,1987,CGIAR study paper,,0821308807,,https://cir.nii.ac.jp/crid/1130000797860922496