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 Food and Agriculture Organization of the United Nations,"Land resources information systems for food security in SADC countries : proceedings of a subregional workshop held in Harare, Zimbabwe, 3-5 Novemvber 1999",,Food and Agriculture Organization of the United Nations,2000,World soil resources reports,,,,https://cir.nii.ac.jp/crid/1130000795916191616