TY  - BOOK
AU  - Spencer Edgar Winston
TI  - Introduction to the structure of the earth 
U1  - 551.1 SPE  
PY  - 1969///.
CY  - New York : 
PB  -  McGraw-Hill Book Company, 
KW  - Physical and dynamic geology
KW  - Earth
N1  - Includes index.
ER  -