Attia, Yasser Mohammed Abdel Hadi. <br/><br/>
Studies on some diseases affecting the gills in some cultured fishes in Egypt  [computer file]/ 
 دراسات على بعض الأمراض التى تصيب الخياشيم فى بعض أسماك المزارع فى مصر.‪‪‪ 
Yasser Mohammed Abdel Hadi Attia. 
 -  2004. 
 - Computer laser optical disks;  4 3/4 in. 
<br/><br/>Thesis (Ph.D.) --Zagazig University, 2004. 
<br/><br/>Includes bibliographical refrences (leaves 156-174). 
<br/><br/><br/>Systems requirments:Adobe Reader. 
<br/><br/><br/>Summary in Arabic. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Fishes--Diseases--Egypt.<br/>Gills.<br/>Fishes--Effect of water quality on.<br/>Bacterial gill disease.