Education
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^ab"Copyright Term and the Public Domain in the United States". Cornell University.Archivedfrom the original on 11 September 2017. Retrieved15 October2018.
^"What is Wikisource?".The University of Edinburgh. 26 August 2021.Archivedfrom the original on 5 July 2024. Retrieved5 July2024.
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^Cartmell, Deborah; Whelehan, Imelda (2007).The Cambridge companion to literature on screen. Cambridge University Press. p. 69.ISBN978-0-521-61486-3. Retrieved1 June2010.