TY  - BOOK
AU  - Ahsan Bilal
AU  - waris ali
TI  - Performance study of vertical upward flow coarse media roughing filter
U1  - T-36 
PY  - 2505///-1996
CY  - Risalpur
PB  - MCE
KW  - Thesis
N1  - 0; 0; 0; T_36
ER  -