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
"Venkatesan, V. (Venkatachalam) and Kampen, Jacob",Evolution of agricultural services in Sub-Saharan Africa : trends and prospects,,World Bank,1998,World Bank discussion papers,,0821342592,,https://cir.nii.ac.jp/crid/1130282269116088448