TY  - BOOK
AU  -  Mellanby,Helen
TI  -  Animal life in fresh water : :  a guide to fresh-water invertebrates / 
U1  -  591.929 MEL 
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;  Includes bibliographies and index
ER  -