000			00354nam a2200157Ia 4500
008			170101s1971 xx 000 0 und d
082			_a551 P97G
100			_aPutnam, William C.
245		0	_aGeology
250			_a2nd
260			_aN.Y. _bOxford Univ. Pr. _c1971
300			_a26cm; 586
650			_aGEOLOGY
653			_aGEOLOGY
942			_2ddc _cB
999			_c45536 _d45536