Dwidjoseputro, D text Jakarta Erlangga 1990 ind xiv, 134 hlm ilus 21 cm Ekologi 604.2 170309 20090604093237.0 NADAR-06090000009918 Converted from MARCXML to MODS version 3.5 using MARC21slim2MODS3-5.xsl (Revision 1.106 2014/12/19)