TY  - BOOK
AU  - Fretter Vera
AU  -  Graham Alastair
TI  - British prosobranch molluscs: Their functional anatomy and ecology
U1  - K7:2, K2 
PY  - 1962///
CY  - London
PB  - Ray Society        
KW  -  Mollusca
KW  - Zoology
ER  -