TY  - BOOK
AU  - Skinner,Brian J  .
AU  - Porter,stephen C  .
TI  - The Dynamic earth : an introduction to physical geology / 
SN  - 0471595497
U1  - 551 
PY  - 1995///
CY  - New York : 
PB  - John Wiley & Sons , 
KW  - PHYSICAL GEOLOGY
ER  -