text Jakarta W. Versluys 1952 Cet. 1 ind 198 hlm ilus 23 cm L.P. Simanjuntak...[et.al.] pelajaran ilmu bumi 910.7 20090227025041.0 YOGYA-02090000035760 Converted from MARCXML to MODS version 3.5 using MARC21slim2MODS3-5.xsl (Revision 1.106 2014/12/19)