TY  - BOOK
AU  - Skinner Brian J
AU  -  Porter Stephen C
TI  - Dynamic earth:  An introduction to physical geology   
SN  - 0471161187
U1  - U211, M9 
PY  - 1989///
CY  - New York
PB  - John Wiley & Sons Inc.     
KW  - Geography
N1  - Bibliography pSR1-2; Appendix pA1-2; Glossary pG1-13
ER  -