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101 0 $aeng
135   $adrcnu
200 1 $a<<An>> essay on calcareous manures$fby Edmund Ruffin$gedited by J. Carlyle Sitterson
210 1 $aCambridge, Mass$cBelknap Press of Harvard University Press$d1961
215   $aTesto elettronico (PDF) (XXXV, 199 p.)
225 2 $aJohn Harvard library
230   $aBase dati testuale
410  0$aJohn Harvard library.
606 0 $aConcimi$2BNCF
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700  1$aRUFFIN,$bEdmund$f1794-1865.$0843388
702  1$aSITTERSON,$bJoseph Carlyle$f1911-
712 02$aAmerican Council of Learned Societies.
801  0$aIT$bcba$cREICAT
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996   $aEssay on calcareous manures$92832238
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