Lings, Martin, <br/><br/>
The book of certainty / 
Abū Bakr Sirāj Ed-Dīn. 
 - First american paperback edition. 
 - 108 pįginas ;  18 cm. 
<br/><br/><label>ISBN: </label>0877280312 
<br/><br/><label>LCCN: </label>71138082 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Sufismo.
<br/><br/><label>LC Class. No.: </label>BP189  / .S46 1970