NISSEN, Axel. Actresses of a Certain Character: Forty Familiar Hollywood Faces from the Thirties to the Fifties. [s.l.] : McFarland & Company, 2007. Dostupné online.ISBN 978-0-7864-2746-8. S. 196–202.
HOGAN, David J.. The Wizard of Oz FAQ: All That's Left to Know About Life, According to Oz. [s.l.] : Applause Theatre & Cinema Books, 1 June 2014. Dostupné online.ISBN 978-1-4803-9719-4. S. 113–115.
latimes.com
articles.latimes.com
FOLKART, Burt A.. Gale Sondergaard Dies; Movies' 'Spider Woman'. Los Angeles Times, August 15, 1985. Dostupné online [cit. 2017-09-24].
oscars.org
oscars.org
The 9th Academy Awards [online]. Academy of Motion Picture Arts and Sciences, [cit. 2014-08-03]. Dostupné online.
awardsdatabase.oscars.org
1946 19th Oscar nominees [online]. Academy of Motion Picture Arts and Sciences, [cit. 2014-08-03]. Dostupné online. Archivované 2014-08-08 z originálu.
web.archive.org
1946 19th Oscar nominees [online]. Academy of Motion Picture Arts and Sciences, [cit. 2014-08-03]. Dostupné online. Archivované 2014-08-08 z originálu.