000 00346nam a2200121Ia 4500
001 24019
008 170722s9999 xx 000 0 und d
100 _aSpencer, Edgar Winston
245 _aDynamics of the earth :
_b An introduction to physical geology /
260 _bThomas Y Crowell Co
_aNewyork
_c1972
300 _a649
_c24 cm.
942 _cGEN
999 _c10106
_d10106