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 "Sikora, Richard A. and Terry, E. R. and Vlek, Paul L. G. and Chitja, Joyce","Transforming agriculture in Southern Africa : constraints, technologies, policies and processes",,Routledge,2020,Earthscan food and agriculture,,9781138393530,,https://cir.nii.ac.jp/crid/1130567904673757056