Key concepts in the practice of sufism : emerald hills of the heart /
Key concepts in the practice of sufism : emerald hills of the heart / M. Fethullah Gulen - New Jersey : Tughra Books, 2009. - 2v. ; 23 cm.
Includes Bibliographical References and Index.
9781932099232 (pbk.) 9781932099751 (pbk.)
Sufism -- Doctrines.
BP189.3