TY  - BOOK
AU  - Parker T Jeffery Ed.
AU  -  Haswell William A Ed.
TI  - Textbook of zoology: Invertebrates
U1  - K, J4;K2.1 
PY  - 1962///
CY  - London
PB  - Macmillan Press        
KW  - Zoology
ER  -