TY  - BOOK
AU  - Tyagi, Rajiv 	
TI  - Textbook of hydrobiology /			
SN  - 9788183565578
U1  - 577.6 TYA 
PY  - 2010///
CY  - New Delhi : 
PB  - Discovery Publishing House ,	
N1  - Includes Index.
ER  -