TY  - BOOK
AU  - Colbert,Edwin Harris
TI  - Evolution of the vertebrates: a history of the backboned animals through time 
SN  - 0471164666
PY  - 1969///
CY  - New York
PB  - Wiley
KW  - Vertebrates, Fossil
KW  - Vertebrates
KW  - Evolution
KW  - Phylogeny
ER  -