TY  - BOOK
AU  - Colbert, Edwin. H.
TI  - Evolution of the Vertebrates: A History of the Background Animals Through Time
SN  - 0-85226-125-X
U1  - 596 
PY  - 1989///
CY  - New Delhi
PB  - Wiley Eastern Limited
KW  - Vertebrtates
KW  - Evolution
ER  -