Agriculture -- Economic aspects -- Sudan -- Gezira (Region) : Sudan : the Gezira scheme and agricultural transition / Tony Barnett and Abbas Abdelkarim
1991
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Cotton trade -- Sudan -- Gezira (Region) : Sudan : the Gezira scheme and agricultural transition / Tony Barnett and Abbas Abdelkarim
1991
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Irrigation -- Economic aspects -- Sudan -- Gezira (Region) : Sudan : the Gezira scheme and agricultural transition / Tony Barnett and Abbas Abdelkarim
1991
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Irrigation -- Sudan -- Gezira (Region) : The Gezira irrigation scheme in Sudan : objectives, design, and performance / Herve Plusquellec
1990
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Sudan -- Gezira (Region) : Sudan : the Gezira scheme and agricultural transition / Tony Barnett and Abbas Abdelkarim
1991
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Gezondheidsraad (Netherlands) / http://id.loc.gov/authorities/names/n79093270 : The paradox of scientific authority : the role of scientific advice in democracies / Wiebe E. Bijker, Roland Bal, Ruud Hendriks
2009
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GFI Software (Firm) -- Handbooks, manuals, etc : GFI network security and PCI compliance power tools / Brien Posey ; Troy Thompson, technical editor ; foreword by Laura Taylor
2009
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Περὶ γεωργίας εκλογαί -- See Geoponica
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