TY  - BOOK
AU  - Colbert,Edwin H.
TI  - Evolution of the vertebrates: : a history of the backboned animals through time
U1  - 566 
PY  - 1969///
CY  - New York
PB  - John Wiley & Sons
KW  - VERTEBRADOS FOSILES
KW  - VERTEBRADOS
KW  - EVOLUCION
KW  - FILOGENIA
ER  -