TY  - BOOK
T1  - Streams, lakes, ponds
T2  - Harper Torch books.
A1  - Coker, Robert Erwin, 1876-.
LA  - English
PP  - New York
PB  - Harper and Row
YR  - 1968
UL  - http://discoverylib.upm.edu.my/discovery/Record/424040
OP  - 327
CN  - QH96.C6
KW  - Limnology.
KW  - Fresh-water biology.
ER  -