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001 996453354003316
005 20220120061315.0
100   $a19981209e19991959  uy|            0
101 0 $aeng
102   $aUK
135   $adrcnu
200 1 $aConservation and the gospel of efficiency$ethe progressive conservation movement, 1890-1920$fSamuel P. Hays
210 1 $aPittsburgh$cUniversity of Pittsburgh Press$d1999
215   $aTesto elettronico (PDF) (297 p.)
230   $aBase dati testuale
606 0 $aConservation of natural resources$zUnited States$xHistory$2BNCF
606 0 $aPolitica ambientale$yStati Uniti d'America$xStoria$2BNCF
676   $a333.720973
700  1$aHAYS,$bSamuel P.$0102888
801  0$bcba$aIT$bcba$gREICAT
801  1$bcba$aIT$bcba$gREICAT
801  2$bcba$aIT$bcba$gREICAT
912   $a996453354003316
959   $aEB
969   $aER
996   $aConservation and the gospel of efficiency$936107
997   $aUNISA