text Bangkok Agricultural Dev. Council 1984 xv, 437 p. : ill ; 21 cm MEKANISASI PERTANIAN TENAGA KERJA 631.3 631.3 INLIS000000000000769 Converted from MARCXML to MODS version 3.5 using MARC21slim2MODS3-5.xsl (Revision 1.106 2014/12/19)