000 00279nam a2200097Ia 4500
008 230930s9999||||xx |||||||||||||| ||und||
100 _aEhlers,Ernest G. & Blatt,Harvey
245 0 _aPetrology Igneous, Sedimentary, and Metamorphic (Geology)
260 _aNew York
260 _bCBS Pub
999 _c21177
_d21177