text Pekanbaru Dinas Pertanian Rakyat Porpinsi Riau 1973 Ind 130 p.: ill.; 28 cm. 130 p.: ill.; 28 cm. DIREKTORAT JENDERAL PERTANIAN AGRICULTURE RIAU 63 (921.26) 63.(921.26)DIRm INLIS000000000010633 Converted from MARCXML to MODS version 3.5 using MARC21slim2MODS3-5.xsl (Revision 1.106 2014/12/19)