000 00423nam a2200157Ia 4500
020 _a069024844X
082 _a551
_bSPD
100 _aSpencer, Edgar Winston
_941916
245 _aThe dynamics of the earth
_b: an introduction to physical geology
_cEdgar Winston Spencer
260 _aNew York:
_bThomas Y. Crowell,
_c1972.
300 _axiii, 649p.
500 _aHB
546 _aEng
650 _aGeology
_942077
942 _cBK
999 _c162
_d162