Graham, Cooper C.; Higgins, Steve; Mancini, Elaine; Viera, João Luiz. Entry for "Chocolate Dynamite", D. W. Griffith and the Biograph Company. Metuchen, New Jersey and London: The Scarecrow Press, 1985, p. 210. Retrieved via Internet Archive (San Francisco, California), June 15, 2023. Refer to Wikipedia page for Chocolate Dynamite to see a 1913 photograph of the new glass-inclosed studio at Biograph's Bronx facilities.
bitlaw.com
Tuska, Jon (1999). The Vanishing Legion: A History of Mascot Pictures, 1927–1935. Jefferson, North Carolina: McFarland & Company. p. 42. ISBN0-7864-0749-2. The last trade of Biograph stock was reported by The New York Times on December 27, 1928, p. 39. The Biograph trademarks were legally abandoned by 1942. 15 USC 1127. The last of the Biograph film copyrights expired in 1945, without any of them having been renewed for a second term. Hurst, Walter E. (1992–1994). Film Superlist: Motion Pictures in the U.S. Public Domain. Hollywood, California: Hollywood Film Archive. ISBN0-911370-73-0.
Billy Bitzer. "The Biograph Camera". The Operating Cameraman. No. Spring 1995. Society of Camera Operators. Archived from the original on November 1, 2004. Retrieved November 30, 2004.
Billy Bitzer. "The Biograph Camera". The Operating Cameraman. No. Spring 1995. Society of Camera Operators. Archived from the original on November 1, 2004. Retrieved November 30, 2004.
