1Wilson, Edmund. Oyo, Those Awful Rocs ! [J]. The Nation, 1956(4).
2Fuller, Edmund. Books with Men Behind Them[M]. New York: Random, 1962.
3Boucher, Anthony. Recommended Reading[J]. Fantasy and Science Fiction, 1955(8).
4Carter, Lin. The Young Magician[M]. New York: Ballantine, 1969.
5Spacks, Patricia M. Power and Meaning in The Lord of the Rings[J]. Critique, 1959(4).
6Zimbardo, Rose. Moral Vision in The Lord of the Rings[G]//Zimbardo, Rose and Isaacs, Neil. Understanding The Lord of the Rings: the Best of Tolkien Criticism. New York: Houghton Mifflin Company, 2004.
7Reilly, Robert.J.R.R. Tolkien and the Fairy Story[J]. Thought, 1963(5).
8Chance, Jane. Tolkien's Art: A Mythology for England[M]. London: Macmillan Press, 1979.
9Fliege, Verlyn. Frodo and Aragom:The Concept of Hero[G]//Zimbardo, Rose and Isaacs, Neil. Tolkien: New Critical Perspectives. Lexington: University Press of Kentucky, 1977.
10Timmons, Daniel. Mirror on Middle-earth: J.R.R.Tolkien and the Critical Perspectives[D]. Ann Arbor: UMI, 1998.
