Farm-level constraints to high rice yields in Asia : 1974-1977 International Rice Research Institute text Los Banos, Laguna, the Philippines International Rice Research Institute 1979 411 p. ; 23 cm International Rice Research Institute FARM-LEVEL, CONSTRAINTS, YIELDS, ASIA, 1974-77, RICE BREEDING 633.18(5) INT f 20241107023215 INLIS000000000004809 Converted from MARCXML to MODS version 3.5 using MARC21slim2MODS3-5.xsl (Revision 1.106 2014/12/19)