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040 _cCHAP
082 _a630.717
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100 0 0 _aDe Vries, C. A.
_931413
245 _aAgricultural extension in the developing countries; a bibliography
260 _aWageningen :
_bInternational Institute for Land Reclamation and Improvement,
_c1968
300 _a125 p.
490 _aInternational Institute for Land reclamation and Improvement . Bibliography
_v; 7
590 _aBATCH-UPD
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590 _aBATCH-UPD
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590 _aBATCH-UPD
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590 _aBATCH-UPD
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590 _aCONVERSION
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650 1 4 _aExtensión agrícola
_xPaíses subdesarrollados
_xBibliografía.
_939182
830 0 _aInternational Institute for Land reclamation and Improvement . Bibliography
_v; 7
_959731
901 _aBK
942 _cLIBRO
949 _a630.717 D4
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