000 00291nam a2200109Ia 4500
001 84589
008 170722s9999 xx 000 0 und d
100 _aHallam, A.
245 _aRevolution in the earth sciences.
_bFrom continental drift to plate tectonics. /
260 _c1973.
942 _cGEN
999 _c87536
_d87536