Gulen, M. Fethullah Essentials of the islamic faith M. Fethullah Gulen. - New Jersey: Tughra Books, 2010. - 268 p. ISBN: 9781597840637 Subjects--Topical Terms: Islam--Doctrines.Islam--Essence,genius,natureIslam--Appreciation Dewey Class. No.: 297.2 / GUE