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100   $a20241023d1965----kmuy0itay5050    ba
101 0 $aeng
102   $aUS
105   $a        001yy
200 1 $aSoil conservation in perspective$fby R. Burnell Held and Marion Clawson
210   $aBaltimore$cThe Johns Hopkins press$dc1965
215   $aXIII, 344 p.$d23 cm.
610 0 $aPedologia
676   $a631.4$v23 9z ita
700  1$aHeld,$bR. Burnell$01768295
701  1$aClawson,$bMarion$033446
801  0$aIT$bUNINA$gREICAT$2UNIMARC
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996   $aSoil conservation in perspective$94224143
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