Ibn Sina (Avicenna),  980-1037 <br/><br/>
Risalat al-adhawiyah undated  [microform] / 

 - London :  British Library,  [n.d] 
<br/><br/> CC. 
<br/><br/><br/>Originals in: British Library, accession no. OR 8722. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Islam--Doctrines--Early works to 1800
<br/><br/><label>Gov. Doc. Class. No.: </label>BLIB OR 8722