TY  - BOOK
AU  - Jeffrey,Parker
AU  - Haswell,Willam A..
AU  - Marshall,A.J..
AU  - Willams,W.D..
TI  - Textbook of zoology : invertebrates / 
SN  - 812390035X
U1  - 592 
PY  - 1972/// (rep. 1992)
CY  - New Delhi : 
PB  - C B S Publishers and Distributors , 
KW  - INVERTEBRATES
N1  - NULL
ER  -