TY  - BOOK
T1  - At the water's edge :nature study in lakes, streams, and ponds /
DA  - c1989.
CY  - New York :
AU  - Cvancara, Alan M.
CN  - QH541.5 .F7
CN  - QH541.5.F7
PB  - Wiley,
PP  - New York :
PY  - c1989.
N1  - Includes index.
ID  - 128795
KW  - Freshwater ecology.
SN  - 0471620866 (pbk.)
TI  - At the water's edge :nature study in lakes, streams, and ponds /
ER  -