Gulen, M.Fethullah <br/><br/>
Key concepts in the practice of sufism :  emerald hills of the heart / 
M. Fethullah Gulen 
 - New Jersey :  Tughra Books,  2009. 
 - 2v. ;  23 cm. 
<br/><br/>Includes Bibliographical References and Index. 
<br/><br/><label>ISBN: </label>9781932099232 (pbk.) 9781932099751 (pbk.) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Sufism -- Doctrines.
<br/><br/><label>LC Class. No.: </label>BP189.3