TY  - BOOK
AU  - Wetzel,Robert G.
TI  - Limnology : lake and river ecosystems / 
SN  - 813120345X
U1  - 551.483 
PY  - 2006///
CY  - Gurgaon : 
PB  - Academic Press , 
KW  - LIMNOLOGY
N1  - Includes references, appendicex and index
ER  -