text Manila IRRI 1997 ing xi, 273 p. : ill; 23 cm. RICE FARMING SYSTEMS SUSTAINABILITY 26.3875 26.3875 0-85199-163-7 INLIS000000000003398 Converted from MARCXML to MODS version 3.5 using MARC21slim2MODS3-5.xsl (Revision 1.106 2014/12/19)