Sharawy, Ahmed Mahmoud Aly. <br/><br/>
Studies on weed control by non-polluting physical methods in citrus orchards in North Africa  [microform]/ 
 دراسات على مقاومة الحشائش بطرق طبيعية غير ملوثة للبيئة فى حدائق الموالح بشمال أفريقيا. 
Ahmed Mahmoud Aly Sharawy. 
 -  1999. 
 - 174, 6 Leaves :  ill. ;  30 cm. 
<br/><br/>Thesis (Ph.D.)--Cairo University,1999. 
<br/><br/>Includes bibliographical references (leaves 158-174) 
<br/><br/><br/>Microfiche. <br/>Cairo, Egypt : <br/>ASUNET, <br/>4 microfiches:negative. 
<br/><br/><br/>Summary in Arabic. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Citrus--Weed control<br/>Equilibrium<br/>Soil animals.