01000nam0-22003371i-450-99000543280020331620010829120000.0000543280USA01000543280(ALEPH)000543280USA0100054328020010829d1992-------|0itac50------baitaIT||||Z 1||||Risorse naturali, merci e ambienteil caso dello zolfoMaria ProtoSale rnoDip. Scienze Economiche1992 - 31 p. : tab. ; 23 cmWorking paper282001Working paper28PROTO,Maria142440ITSOL20120104990005432800203316DIP.TO SCIENZE ECONOMICHE - (SA)DS DIP WP28 DISESDIP WP2146 DISESBKDISES20121027USA01153220121027USA011612Risorse naturali, merci e ambiente1144210UNISAUSA2537