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Pitts, Michael R. Poverty Row Studios, 1929–1940: An Illustrated History of 55 Independent Film Companies, with a Filmography for Each. McFarland & Company, 2005.
Walker, Brent E. Mack Sennett’s Fun Factory: A History and Filmography of His Studio and His Keystone and Mack Sennett Comedies, with Biographies of Players and Personnel. McFarland, 2013.