000 00389nam a2200169Ia 4500
008 210210b1923 xxu||||| |||| 00| 0 eng d
041 _aeng
082 _a550/7
100 _aHARKER (A)
245 _aPetrology for students
260 _aLondon
_bAt the University Press
_c1923
650 _astudents
650 _aPetrology
650 _afor
690 _aGeology
906 _a010151
999 _c137919
_d137919