text Jakarta Yayasan Agro Ekonomika 1978 357 p. : ill. ; 21 cm. PEMBANGUNAN PERTANIAN KONPERENSI 63.001.6 63.001.6 INLIS000000000001173 Converted from MARCXML to MODS version 3.5 using MARC21slim2MODS3-5.xsl (Revision 1.106 2014/12/19)