00763nam0-22002771i-450-99000654806040332120001010000654806FED01000654806(Aleph)000654806FED0100065480620001010d--------km-y0itay50------baitay-------001yyDuality and modern economicsRichard CornesCambridgeCambridge University Press1992.XII, 290 p.23 cmCornes,Richard<1946- >88937ITUNINARICAUNIMARCBK990006548060403321VI A 107218167FSPBCFSPBCDuality and modern economics619098UNINAGEN01