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Bramlett, Perry C. & Christopher, Joe R.: I Am in Fact a Hobbit: An introduction to the Life and Works of J. R. R. Tolkien, s. 42. Macon, Georgia: Mercer University Press, 2002. ISBN 0-86554-851-XTeos Google Booksissa Viitattu 12.4.2008. (englanniksi)
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Natascha Haas: "A fundamentally religious and Catholic work" - Who is the saviour in J.R.R. Tolkien's The Lord of the Rings. University of Heidelberg. Teoksen verkkoversio.
Handwerk, Brian: Lord of the Rings Inspired by an Ancient EpicNational Geographic. 1.3.2004. Washington, Yhdysvallat: National Geographic Society. Viitattu 29.10.2009. (englanniksi)
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Gardner, John: The World Of TolkienThe New York Times. 23.10.1977. New York, Yhdysvallat: The New York Times Company. Viitattu 19.10.2009. (englanniksi)
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Michel, Laura: Politically Incorrect: Tolkien, Women, and Feminism (”J.R.R. Tolkien has been accused of sexism more than once.”) Tolkien and Modernity 1 Cormarë Series No. 9.. Walking Tree Publishers. (englanniksi)