Pierce (June 2007). "Forgotten Faces: Why Some of Our Cinema Heritage Is Part of the Public Domain". Film History: An International Journal. 19 (2): 125-43. doi:10.2979/FIL.2007.19.2.125. ISSN0892-2160. OCLC15122313.
Pierce (June 2007). "Forgotten Faces: Why Some of Our Cinema Heritage Is Part of the Public Domain". Film History: An International Journal. 19 (2): 125-43. doi:10.2979/FIL.2007.19.2.125. ISSN0892-2160. OCLC15122313.