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 "国分, 牧衛 and 農林水産省国際農林水産業研究センター",No-tillage cultivation of soybean and future research needs in South America,,"Japan International Research Center for Agricultural Sciences, Ministry of Agriculture, Forestry and Fisheries",1998,JIRCAS working report,,,,https://cir.nii.ac.jp/crid/1130282271507410560