Schoolyard. Archive of American Television. 2010-01-05 [2017-12-14]. (原始内容存档于2017-12-14). 參考書籍 Lentz, Harris M. Western and Frontier Film and Television Credits
James. The Blood ofHeroes: The 13-Day Struggle for the Alamo – and the Sacrifice That Forged a Nation. Little, Brown and Company. 2012. ISBN 978-0-316-05374-7
Stephen. Film Review; Best Friends Who Are Also Worst Enemies Struggle in a Web of Emotions. The New York Times. The New York Times Company. 2002-07-05
(PDF). American Film Institute. [2016-08-05]. (原始内容存档 (PDF)于2020-06-22). AFI's 100 Years…50 Heroes and Villains (PDF). American Film Institute. [2019-05-06]