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 World Bank/FAO/UNIDO/Industry Fertilizer Working Group,"World and regional supply and demand balances for nitrogen, phosphate, and potash",,World Bank,1992,World Bank technical paper,,"0821321633,0821325051,0821328816,0821334956",,https://cir.nii.ac.jp/crid/1130000797476630784