TY  - BOOK
AU  - Timmons, J. Michael,
AU  - Karlstrom, Karl E.
CN  - QE654
CN  - QE654
CY  - Boulder, Colo. :
DA  - c2012.
ID  - 455109
KW  - Geology
KW  - Geology, Stratigraphic
KW  - Erosion
PB  - Geological Society of America,
PP  - Boulder, Colo. :
PY  - c2012.
SN  - 9780813724898 (pbk.)
SN  - 0813724899 (pbk.)
T1  - Grand Canyon geology :two billion years of Earth's history /
TI  - Grand Canyon geology :two billion years of Earth's history /
VL  - 489
ER  -