Ahmed, Wafai Elhosseni. <br/><br/>
Potassium status of the clay fraction & other separates in various soils of the valley & oases, A.R.E.  [microform] / 
 حالات البوتاسيوم في الطين والمجاميع الاخرى في الاراضي الرسوبية والواحات في ج.م.ع. 
Wafai Elhosseni Ahmed. 
 -  1972. 
 - 152, 4 leaves :  ill. ;  30 cm. 
<br/><br/>Thesis (M.S.)--Cairo University, 1972. 
<br/><br/>Includes bibliographical references (leaves 139-152) 
<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/>Soils--Potassium content.<br/>Soils--Egypt.