Ahsan Bilal <br/><br/>
Performance study of vertical upward flow coarse media roughing filter 
Ahsan Bilal 
 - Risalpur  MCE  25-5-1996 
 - 109p.:  40cm. 
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<br/><br/><label>Subjects--Topical Terms: </label><br/>Thesis
<br/><br/><label>Dewey Class. No.: </label>T-36