TY  - BOOK
AU  - Clarkson,E.N.K.
TI  - Invertebrate palaeontology and evolution
SN  - 0045600074
PY  - 1979///
CY  - London
PB  - George Allen & Unwin
KW  - Invertebrates, Fossil
N1  - Includes bibliographies and indexes
ER  -