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 "Lombin, L. G.",Assessment of the direct and residual values of various phosphatic fertilisers using a groundnut-sorghum rotation on a savanna soil,,"Institute for Agricultural Research, Ahmadu Bello University",1979,Samaru miscellaneous paper,,,,https://cir.nii.ac.jp/crid/1130282268663961728