Fayad, Yahia Hussein. <br/><br/>
Insects for the control of waterhyacinth in Egypt  [microform] /  
Yahia Hussein Fayad. 
 -  1982. 
 - 153, 8 leaves :  ill. ;  30 cm. 
<br/><br/>Thesis (Ph.D)-- Al-Azhar University, 1982. 
<br/><br/>Includes bibliographical references (leaves 145,153) 
<br/><br/><br/>Microfiche. <br/>ASUNET, <br/>Ain Shams University, <br/>3 microfiches : negative. 
<br/><br/><br/>Summary in Arabic. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Water hyacinth--Control<br/>Water hyacinth--Egypt<br/>Aquatic weeds--Control