Call It Courage | For Further Reference
Commire, Anne, ed. Something about the Author. Vol. 1. Detroit: Gale Research, 1971. Entry on Sperry contains brief biographical information.
Something about the Author. Vol. 27. Detroit: Gale Research, 1982. Contains an obituary of Sperry.
Kingston, Carolyn T. The Tragic Mode in Children's Literature. New York: Teachers College Press, 1974. A look at Call It Courage as an example of a rejected tragic hero story.
Kirkpatrick, D. L., ed. Twentieth Century Children's Writers. New York: St. Martin's Press, 1983. Includes...
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