1R.M. Wilson, Early English Literature ( London: Methuen,1968), p. 137.
2Margaret Schlauch, English Medieval Literature and Its Social Foundations (London: Oxford UP, 1956 ), p. 160.
3David Wallace, ed., The Cambridge History of Medieval English Literature ( Cambridge: Cambridge UP, 1999 ), p. 101.
4George Sampson, The Concise Cambridge History of English Literature ( Canbridge: Cambridge UP, 1970 ), p. 202.
5Alexander Lindey, Plagiarism and Originality ( New York: Harper, 1952) ,p.2
6Michael Foucault,"What Is an Author?', in Josue V. Harari, ed, Textual Strategies: Perspectives in Post-Structuralist Criticism (Ithaca: Cornell University Press, 1979), p. 149.
7John Edwin Wells, A Manual of the Writings in Middle English,1050 - 1400 (New Haven: Yale University Press, 1941 ), p. 193.
8Joseph Gibaldi, MLA Style Manual and Guide to Scholarly Publishing , 2nd ed. ( New Yrok: MLA, 1998), p . 151.
9J.A. Burrow, Medieval Writers and Their Work, revised ed ( Oxford:Oxford UP, 1997) ,p.29.
