Foreword by Meher Baba. Illustrated with b/w photos & maps. San Francisco: Sufism Reoriented, Inc., 1969. Small 4to. Green cloth, stamped in gilt. ix, 405, 57 p. 2nd printing. Extra shipping for this large, heavy book. 
Trans. by Blanche C. Olschak - Thupten Wangyal. Zürich: Buddhist Publications, (1973). Boards. 224 p. Unesco Collection of Representative Works. Trilingual Edition. Advice on how to study the tantric texts and maxims.