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100   $a20030910d--------km-y0itay50------ba
101 0 $aita
102   $aIT
200 1 $aEconomics of Agricultural Production and Resource Use$fEarl O. Heady.
210   $aEnglewood Cliffs (N.J.)$cPrentice Hall$dc1952.
215   $aviii, 850 p.$cill.$d24 cm
610 0 $aEconomia agraria
676   $aH/1.11
700  1$aHeady,$bEarl Orel$f<1916- >$079005
801  0$aIT$bUNINA$gRICA$2UNIMARC
901   $aBK
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952   $aH/1.11 HEA$b019140$fSES
959   $aSES
996   $aEconomics of agricultural production and resource use$9411384
997   $aUNINA