TY  - BOOK
AU  - Seyfert,Carl K.
AU  - 
TI  - Earth history and plate tectonics : : an introduction to historical geology
SN  - 060459190
U1  - 551 23
PY  - 1973///
CY  - New York : 
PB  - Harper Collins , 
KW  - Geology
ER  -