TY  - BOOK
AU  - Emmons, William H.
AU  - Thiel, George A.
AU  - Stauffer, Clinton R.
AU  - Allison, Ira S.
TI  - Geology : Principles and processes
U1  - 550 DDC 21
PY  - 1939///
CY  - New York
PB  - McGRAW- HILL Book Company, inc
KW  - Geology
KW  - Physical geology
ER  -