At the Earth's Core | For Further Reference
Aldiss, Brian W. "From Barsoom to Beyond the Borderlands: Swords, Sorceries and Zitidars." In Trillion Year Spree: The History of Science Fiction. New York: Avon Books, 1986 (2d ed.), pp. 155-173. Aldiss summarizes the contribution of Burroughs to science fiction and tries to explain why his work is science fiction yet is not science fiction. Accompanied by photographs of Burroughs.
Beetz, Kirk H. "Edgar Rice Burroughs." In Research Guide to Biography and Criticism. Vol. V. Edited by Walton Beacham, et al. Washington, DC: Beacham Publishing, 1991, pp. 108-114....
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