TY  - BOOK
AU  - CLARKSON, E.N.K
TI  - Invertebrate palaeontology and evolution
SN  - 978-81-26-3308-4
U1  - ZOO 562 
PY  - 2012///
CY  - New Delhi
PB  - Wiley
KW  - PALAEONTOLOGY
KW  - FOSSIL INVERTEBRATES
ER  -