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
"De Vries, J. (James)","Has extension failed? : a case study of maize-growing practices in Iringa, Tanzania",,"Dept. of Rural Economy, Faculty of Agriculture, Forestry and Veterinary Science, University of Dar es Salaam",1976,Rural economy research paper,,,,https://cir.nii.ac.jp/crid/1130000793857508352