Ali, Abd El-Rahman Ahmed. <br/><br/>
Studies on sclerotium cepivorum berk. the causal organism of white rot of onion in U.A.R.  [microform] / 
 دراسات على قطر سكليروشيم سييقورم المسبب لمرض العفن الابيض فى البصل فى الجمهورية العريية المتحدة 
by Abd El-Rahman Ahmed Ali. 
 -  1971. 
 - iii, 157, 12 leaves :  ill. ;  30 cm. 
<br/><br/>Thesis(Ph. D.)--Al-Azhar University, 1971. 
<br/><br/>Includes bibliographical references (leaves 147-157). 
<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/>Onions--Diseases and pests.<br/>White rot (Onions)--Egypt.