TY  - GEN
AU  - Zumberge , James H.
AU  - Nelson , Clemens A.
TI  - Elements of physical geology
SN  - 0471986747
U1  - 551 
PY  - 1976///
CY  - New York
PB  - John Wiley and Sons
KW  - GEOLOGY
KW  - PHYSICAL GEOLOGY
ER  -