TY  - BOOK
AU  - Colbert,Edwin H., x
AU  - x
TI  - Evolution of the vertebrates: A history of the backboned animals through time
SN  - x
U1  - 596.38/COE 
PY  - 1970///
CY  - New Delhi
PB  - Wiley Eastern
KW  - Zoology
N1  - x
ER  -