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 "Little, Peter D.","The effects of increased crop production on livestock investments in a semi-arid area : some examples from Baringo district, Kenya",,"Institute for Development Studies, University of Nairobi",1981,Working paper,,,,https://cir.nii.ac.jp/crid/1130000796553798912