ISBN 969-35-1306-1* J. FL Stocqueler, "Life and Labors of Dr Leitner" (1875)* "Portraits of Celebrities at Different Times of their Lives", "The Strand Magazine", Volume VII, January-June 1894* William Rubinstein, The secret of Leopold Amery, "Historical Research", vol.
ISBN 969-35-1306-1* J. FL Stocqueler, "Life and Labors of Dr Leitner" (1875)* «Portraits of Celebrities at Different Times of their Lives», "The Strand Magazine", Volume VII, January-June 1894* Jewish Encyclopedia — Leitner, Gottlieb William* Woking Muslim Mission: Life of Dr. G.W.