TY  - BOOK
AU  - x., x
AU  - Marshall,A.J
TI  - Textbook of zoology: x
SN  - x 
U1  - 592/MAT 
PY  - 1978///
CY  - Lond.
PB  - English Language Book Society
KW  - Zoology
KW  - Invertebrates
ER  -