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José Guimarães Duque · Companhia Cearense de Desenvolvimento Agropecuário
103 sayfa · 1967
Pastures
José Guimarães Duque · CNI, Confederação Nacional da Indústria
32 sayfa · 1973
Ecology / Nature conservation / Agricultural ecology
José Guimarães Duque · Banco do Nordeste do Brasil
238 sayfa · 1964
Agriculture / Agricultural ecology / Crops and climate
José Guimarães Duque · Tipografia Minerva, Brazil
306 sayfa · 1953
Soils / Water-supply / Irrigation / Arid regions
José Guimarães Duque · Escola Superior de Agricultura de Mossoró
337 sayfa · 1982
Agriculture / Economic aspects of Agriculture / Economic conditions / Fundamental education / Industries
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