00537     2200229   4500001002100000005001500021035002500036008004100061100001800102240000600120245001200126300002800138504000600166020001800172082001000190084001600200090001600216260004500232500000600277650001200283852001200295JATIM-0609000001939020230603055817  a0010-060900000019390                                   ind    aESTIG, Gustav  a0  aEkologi  axx . , 204 hlm. , 21 cm  a0  a979-461-009-1  a581.3  a581.3 EST e  a581.3 EST e  aJakarta :bYayasan Obor Indonesia,c1988  a0  aEKOLOGI  aJIPDSUR