000 00474nam a2200145Ia 4500
008 230524s9999 xx 000 0 und d
040 _cUDSM
050 _aQTOQE431.5.H37
100 1 _aHarrison, R. K.
_eAuthor
245 1 2 _aA petrological mineralogical code for computer use
_cR. K. Harrison
260 _aLondon :
_bHer Majesty's Office,
_c1970
300 _aviii,134p.
_bill.
_c30cm.
650 _aMines and minerals
942 _2Library of Congress Classification
_cBK
_n0
999 _c78071
_d78071