000 00446nam a2200169Ia 4500
008 230524s9999 xx 000 0 und d
040 _cUDSM
050 _aQE431.2.O6
110 1 _aThe Open University
_eCorporate author
245 0 _aEarth materials
260 _aLondon:
_bThe Open University Press,
_c1971.
300 _a83p.:
_bill.;
_c29cm.
650 1 _aMineralogy
650 1 _aGeochemistry
650 1 _aPetrology
942 _2lcc
_cBK
_n0
999 _c73047
_d73047