TY  - BOOK
AU  - Marshak , Stephen, 1955-
TI  -  Essentials of geology 
SN  - 9780393919394
AV  - QE28. MAR 2013
PY  - 2013///
CY  - New York
PB  -  W.W. Norton
KW  -  Geology
KW  -  Textbooks.
N1  - includes index
ER  -