00930nam a2200241 i 450099100076641970753620020503201854.0961011s1984 it eng b10125930-39ule_instLE02521905ExLFac. Economiaita338Barbiroli, Giancarlo460566Technological change and appropriate management of primary commodities /Giancarlo BarbiroliRoma :Bulzoni,c1984329 p. ;21 cmEconomia e tecnologia.b1012593017-07-1827-06-02991000766419707536LE025 ECO 338 BAR01.0212025000024564le025Catalogato 2018-E0.00-l- 00000.i1014789527-06-02Technological change and appropriate management of primary commodities198608UNISALENTOle02501-01-96ma -engit 01