Constraints to high yields on asian rice farm: an interim report IRRI text Manila IRRI 1977 id v, 235 hlm.: ill.; 23 cm. PADI 633.18 210430 20210430103209 INLIS000000000000090 Converted from MARCXML to MODS version 3.5 using MARC21slim2MODS3-5.xsl (Revision 1.106 2014/12/19)