TY  - BOOK
AU  - Kay, Marshall
AU  - Colbert, Edwin H
TI  - Stratigraphy and life history
U1  - 551.7 KAY C 
PY  - 1965///.
CY  - New York : 
PB  - John Wiley and Sons, 
KW  - Earth-History
KW  - Geology, Stratigraphy
ER  -