Osman Kamel Abdel-Hady, <br/><br/>
Comparative studies on some parasitic infection of fishes in fresh and polluted water sources / 
 دراسات مقارنة علي الاصابة ببعض الطفيليلت في اسماك المياه العذبة والملوثة. 
By Osman Kamel Abdel-Hady; Supervision Dr. El-Sayed I Ramadan, Dr. Ali A.A. Hassan, Dr. Mohamed A.A. Tawfik. 
 - 166 Leaves :  illustrations  30 cm. +  
<br/><br/>Thesis (Ph.D)-Cairo University, 1998. 
<br/><br/>Bibliography: pages 147-166 
<br/><br/><label>Subjects--Index Terms: </label>polluted water sources  parasitic infection