TY  - BOOK
AU  - Mellanby,Helen
TI  - Animal life in fresh water
T2  - Science paperbacks ; 120
SN  - 0412213605 :
U1  - 592.092 9 
PY  - 1975///
CY  - London
PB  - Chapman and Hall
KW  - Freshwater animals
N1  - Distributed in the U.S.A. by Halsted Press, a division of J. Wiley, New York
ER  -