Jangan Biarkan Bumi Merana laporan worldwatch institute text Jakarta Yayasan obor Indonesia 1993 1 ind
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xxiii, 434 hal : Ilus ; 21 cm EKOLOGI MANUSIA 304.2 304.2 JAN 979-461-125-5 200818 20200818111938 INLIS000000000003275 Converted from MARCXML to MODS version 3.5 using MARC21slim2MODS3-5.xsl (Revision 1.106 2014/12/19)