TY  - BOOK
AU  - Clarkson,E.N.K.
AU  - 
TI  - Invertebrate palaeontology and evolution 
SN  - 978 81 265 3308 4
U1  - 562/C613i 
PY  - 1998///
CY  - New Delhi 
PB  - Wiley
KW  - Palaeontology
KW  - Invertebrates, fossil
N1  - Includes index(p.436-425) Bibliography and glossary
ER  -