TY  - BOOK
AU  - Tyagi,Rajiv
TI  - Textbook of Hydrobiology/ 
SN  - 9788183565578
U1  - 578.76 T R T 
PY  - 2011///
CY  - New Delhi
PB  -  Discovery Publishing House, 
KW  - Hydrobiology
N1  - Includ Index
ER  -