000 00277nam a22001217a 4500
008 181011b xxu||||| |||| 00| 0 eng d
041 _aeng
080 _a910
100 _a42
101 _aGJEO
245 _aBasic Concepts of Physical Geology
_cSpencer, E.W
942 _2udc
_cBK
999 _c49367
_d49367