TY  - BOOK
AU  - Webb,J.E.
AU  - Elgood,J.H.
TI  - Guide to invertebrate animals
SN  - 0333247450
U1  - 592 
PY  - 1978///
CY  - London
PB  - Macmillan
KW  - Invertebrates -- Classification
KW  - Invertebrates
KW  - Invetebrata (Sistematica)
N1  - Includes indexes
ER  -