text Bogor PPPA 1979 Ind 54 p.: ill.; 28 cm. + peta 54 p.: ill.; 28 cm. + peta Bibl.: p. 30 DIREKTORAT PERLINDUNAGN DAN PENGAWETAN ALAM NATURE CONSERVATION NORTH SUMATRA 502.7 502.7DIRl INLIS000000000007333 Converted from MARCXML to MODS version 3.5 using MARC21slim2MODS3-5.xsl (Revision 1.106 2014/12/19)