"Wilhelm Fried Fuchs" is given by "William Fox". Encyclopædia Britannica. Retrieved August 10, 2011., cited in William Wellman Jr. (April 7, 2015). Wild Bill Wellman: Hollywood Rebel. Knopf Doubleday Publishing Group. p. 184. ISBN978-1-101-87028-0., and by Adrian Room in Adrian Room (July 1, 2010). Dictionary of Pseudonyms: 13,000 Assumed Names and Their Origins, 5th ed. McFarland. p. 183. ISBN978-0-7864-5763-2.
Szabo, Istvan (2004). Hames, Peter (ed.). The Cinema of Central Europe. London: Wallflower Press. ISBN1904764215. OCLC57459159.
Solomon, Aubrey (2011). The Fox Film Corporation, 1915-1935: A History and Filmography. Jefferson, N.C.: McFarland. ISBN9780786462865. OCLC690102781.
Krefft, Vanda (2017). The man who made the movies: the meteoric rise and tragic fall of William Fox. New York. pp. 16–20. ISBN978-0-06-186426-1. OCLC1002678502.{{cite book}}: CS1 maint: location missing publisher (link)
Solomon, Aubrey (March 31, 2016). The Fox Film Corporation, 1915–1935: A History and Filmography. Jefferson, North Carolina. ISBN978-1-4766-6600-6. OCLC933438482.{{cite book}}: CS1 maint: location missing publisher (link)
Adinolfi, Francesco (2008). Mondo Exotica: Sounds, Visions, Obsessions of the Cocktail Generation. Translated by Pinkus, Karen; Vivrette, Jason. Durham: Duke University Press. p. 24. ISBN9780822341321. OCLC179838406.
Solomon, Aubrey (March 31, 2016). The Fox Film Corporation, 1915-1935 : a history and filmography. Jefferson, North Carolina: McFarland & Company, Inc. p. 000. ISBN978-1-4766-6600-6. OCLC933438482.