youssef el alfy. <br/><br/>
hydraulic structures :  for second year / 
youssef el alfy. 
 - cairo :  October 6 University،  2015. 
 - 110 p ؛  30 cm. 
<br/><br/> كليه الهندسة 2015 
<br/><br/><label>Dewey Class. No.: </label>627  / y h