TY  - BOOK
AU  - A. J. Marshall
AU  -  W. D. Williams, 
TI  - Textbook of zoology invertebrates 
SN  - 333-14107-5
U1  - 591 
PY  - 1972///
CY  - London
PB  - English Language Book Society
N1  - A. J. Marshall & W. D. Williams: Textbook of zoology invertebrates.  (7th Edition.)  London.  English Language Book Society, 1972. 333-14107-5--(591MAR)
ER  -