Metwally, Mamdouh Mohamed. <br/><br/>
Studies on some beneficial insects in Kafr EL-Sheikh Governorate   [microform] / 
Mamdouh Mohamed Metwally. 
 -  1993. 
 - 111, 5 Leaves :  ill. ;  30 cm. 
<br/><br/>Thesis (M.S)--Tanta University, 1993. 
<br/><br/>Includes bibliographical refences (leaves 102-111) . 
<br/><br/><br/>Microfiche. <br/>ASUNET, <br/>Ain Shams University, <br/>2 microfiches : negative. 
<br/><br/><br/>Summary in Arabic. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Citrus--Diseases and pests--Control--Egypt<br/>Insect pests--Biological control.<br/>Beneficial insects.<br/>Insects as biological pest control agents.