000 00399nam a2200157Ia 4500
005 20240807062530.0
008 240806s9999||||xx |||||||||||||| ||eng||
041 _aeng
082 _a551
_bSPEI
100 _aEdgar W. Spencer
245 0 _aIntroduction to the structure of the earth /
_cEdgar W. Spencer
260 _bMcgraw Hill Book Company
300 _a0
650 _aGeography
942 _cBK
999 _c21704
_d21704