Chicago Tribune — разлика између измена

* {{Citation | surname= Keefe| given= Thomas M. | title=Chicago's Flirtation With Political Nativism | journal= Records of the American Catholic Historical Society of Philadelphia |volume= 82 |pages=131–158131-158 |year=1971| id={{ISSN|0002-7790}}}}

* {{Citation | surname= Keefe | given= Thomas M. | title=The Catholic Issue in the Chicago Tribune Before the Civil War | journal= Mid-America |volume= 57 |issue= 4 |pages=227–245227-245 | publisher= Loyola University |year=1975 | id={{ISSN|0026-2927}}}}

* {{Cite book|ref=harv | surname= Wendt | given=Lloyd| title=Chicago Tribune: The Rise of a Great American Newspaper | location=Chicago | publisher=Rand McNally |year=1979 | idisbn=ISBN 978-0-528-81826-4}}}-