ECKHOLM, Erik P text Jakarta PT. Gramedia 1981 id xi, 220p ; 20cm lingkungan hidup -- polusi -- udara 614.7 /2418 210426 20210426131427 INLIS000000000020154 Converted from MARCXML to MODS version 3.5 using MARC21slim2MODS3-5.xsl (Revision 1.106 2014/12/19)