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035 _a34353
040 _cCHAP
082 _a630.82
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100 0 0 _aMcWilliam, A. S.
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245 _aSoil fertility
250 _a7 ed.
260 _aLondon :
_bEvans,
_c1959
300 _a47 p.
_b: ilus
490 _aYoung farmers'club booklet
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590 _aBATCH-UPD
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590 _aCONVERSION
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650 1 4 _aSuelos
_xFertilidad.
_9110367
830 0 _aYoung farmers'club booklet
_v; 12
901 _aBK
942 _cLIBRO
949 _a630.82 Y68 v.12
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