01297nam0 22002771i 450 UON0007558020231205102409.2120020107d1974 |0itac50 baengUS|||| |||||EthiopiaAn economic analysis of technological change in four agricultural production systemsby David A.G. GreenEast LansingAfrican Studies Center1974xv, 120 p.22 cm001UON000665862001 Committee on ethiopian studies monographsOccasional papers2ETIOPIAEconomia agrariaUONC020829FIEast LansingUONL000987333.76TERRENI RURALI / PROPRIETA' AGRARIA21GREENDavid A.G.UONV04957764964African Studies Center, Michigan State UniversityUONV256765650ITSOL20240220RICAUON00075580SIBA - SISTEMA BIBLIOTECARIO DI ATENEOSI AFR FONDO RICCI 144 SI 40212 7 144 SIBA - SISTEMA BIBLIOTECARIO DI ATENEOSI ET XII D a 009 SI AA 2179 5 009 Ethiopia1164144UNIOR