TY  - GEN
AU  - Colbert ,  Edwin H.
TI  - Evolution of the vertebrates: a history of the backboned animals through time 
SN  - 085226125x
U1  - 591.38 
PY  - 1969///
CY  - New Delhi
PB  - Wiley Eastern Limited
KW  - VERTEBRATES
KW  - ZOOLOGY
ER  -