000 00308nam a2200121Ia 4500
008 220412s9999 xx 000 0 und d
100 _aLianko, Aurora
245 0 _aIntroduction to earth science
260 _aQuezon City
_bKatha Publishing Co., Inc.
_c2001
300 _a323
942 _cBK
999 _c21437
_d21437