translated from the German of Joseph Hell by S. Khuda Bukhsh., "Literature": p. 122-124.

Vol. 2 (1926/1928)-, Subtitle varies slightly., Published: Haifa : Bahá'í World Centre, <1999->, Main Heritage Compact General, BP300 .B3 1928, Journal, vol. 2, Item-ID: i20311394, BIB-ID: 2523676, Includes bibliographical references., Vols. for <1992/93-1993/94> called also: New serie ...

by Bernd Terhost, with an introduction by Douglas Booth; with eight drawings and three photographs by the author., Translation of Feuer am Rif., Main Heritage Shelves General, DT310 .T43 1926, Book, Item-ID: i10243537, BIB-ID: 1025989

by Bernd Terhost, with an introduction by Douglas Booth; with eight drawings and three photographs by the author., Translation of Feuer am Rif.