Columbia Encyclopedia«Jack London» [Архівовано 6 квітня 2007 у Wayback Machine.], «Beset in his later years by alcoholism and financial difficulties, London committed suicide at the age of 40.»
Columbia Encyclopedia«Jack London» [Архівовано 6 квітня 2007 у Wayback Machine.], «Beset in his later years by alcoholism and financial difficulties, London committed suicide at the age of 40.»