Negm,Mohamed Farouk Mohamed. <br/><br/>
Effect of topographical factors of cotton fields on the performance of aircraft used in pest control  [microform] / 
 تأثير العوامل الطبوغرافية لحقول القطن على كفاءة الطائرات المستخدمة فى مكافحة الأفات. 
Mohamed Farouk Mohamed Negm. 
 -  1996. 
 - 148,3Leaves :  ill. ;  30 cm. 
<br/><br/>Thesis (Ph.D.)--Al-Azhar University,1996. 
<br/><br/>Includes bibliographical references (leaves 79-82) 
<br/><br/><br/>Microfiche. <br/>Cairo, Egypt : <br/>ASUNET, <br/>3 microfiches:negative. 
<br/><br/><br/>Summary in Arabic. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Pests -- Control.<br/>Airplanes in agriculture.<br/>Cotton -- Diseases and pests.<br/>Insecticides.