000 00285nam a2200121Ia 4500
008 211209s1959 xx 000 0 und d
041 _aeng
082 _a551.8 N65 PET
100 _aPETER C B
245 _aSTRUCTURAL METHODS FOR EXPLORATION GEOLOGY
260 _c1959
300 _a280
999 _c13252
_d13252