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
"Olatunbosun, Dupe and Olayide, S. Olajuwon",Effects of the marketing boards on the output and income of primary producers,,[s.n.],1971,International Conference on the Marketing Board System,,,,https://cir.nii.ac.jp/crid/1130000794588673024