Farming systems , research and development guidelines for developing countries text Boulder, Colorado Westview Press 1982 xviii, 414 p. : ill ; 28 cm SISTEM USAHATANI - NEGARA BERKEMBANG NEGARA BERKEMBANG SISTEM USAHATANI 631.58 631.58 INLIS000000000004508 Converted from MARCXML to MODS version 3.5 using MARC21slim2MODS3-5.xsl (Revision 1.106 2014/12/19)