TY  - BOOK
AU  - Marshak Stephen
TI  - Essentials of Geology
SN  - 9780393924114
U1  - 550 MAR 
PY  - 2004///
CY  - New York
PB  - Norton Publication
KW  - Essentials
KW  - Geology
KW  - Marshak
KW  - Stephen
ER  -