000 00300nam a2200097 4500
999 _c334090
_d334090
082 _a549.125
_bWIN.E
100 _aWinchell,Alex
245 _aElements of Optical mineralogy,:an introduction to microscopic petrography,2nd ed.,pt 3.
_cWinchell,Alex
260 _aNew york
_c1939
_bJohn Wiley
942 _cBK