TY  - BOOK
AU  - Marshak, Stephen
TI  - Essentials of geology
SN  - 9780393919394
AV  - QE 28 .M3415 2013 
PY  - 2013///
CY  - New York
PB  - W. W. Norton & Company
KW  - Geology
KW  - textbooks
N1  - Includes index
ER  -