TY  - BOOK
AU  - Marshall, A.J. ed.
AU  - Williams, W.D. ed.
TI  - Textbook of zoology Invertebrates
SN  - 333 14107 5
U1  - 592 m 367 T 
PY  - 1975///
CY  - London
PB  - English Language book socitey
KW  - Zoology
KW  - Invertebrates
ER  -