TY  - BOOK
AU  - Gilluly J
AU  -  Waters A C
AU  -  Woodford A O
TI  - Principles of geology
T2  - Series of books in geology
U1  - H, J91;L5 
PY  - 1975///
CY  - San Francisco 
PB  -  W H Freeman      
KW  - Geology
ER  -