LEADER 00861nam0 2200253 450 001 000013182 005 20080617155119.0 010 $a0-915-707-32-2 100 $a20080617d1989----km-y0itay50------ba 101 0 $aeng 102 $aUS 105 $ay-------001yy 200 1 $aUsing surveys to value public goods: the contingent valuation method$fRobert Cameron Mitchell, Richard T. Carson 210 $aWashington$cResources for the future$d1989c 215 $a463 p.$cgraf. e tab.$d23 cm 410 0$12001 610 1 $aEconomia pubblica 700 1$aMitchell,$bRobert Cameron$089425 701 1$aCarson,$bRichard T.$089426 801 0$aIT$bUNIPARTHENOPE$c20080617$gRICA$2UNIMARC 912 $a000013182 951 $a327/27$b6942$cNAVA2$d2008 996 $aUsing surveys to value public goods: the contingent valuation method$91203461 997 $aUNIPARTHENOPE