<![CDATA[University of Zambia Library Search for 'su:"Phosphate -- Potash -- Nitrogen."']]>
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2050World regional supply and demand balances for Nitrogen, Phosphate and Potash, 1993-94-1999-2000. ISBN
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Washington : World Bank, 1996
]]>/cgi-bin/koha/opac-detail.pl?biblionumber=23908World and regional supply and demand balances for nitrogen phosphate and potash, 1989/90-1995/96. ISBN
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Washington : World Bank, 1991