APA (7th ed.) Zitazioa
Christ, H. I. (1979). Modern short biographies. Random House Inc..
Chicago Style (17th ed.) Zitazioa
Christ, Henry I. Modern Short Biographies. New York: Random House Inc., 1979.
MLA (9th ed.) Zitazioa
Christ, Henry I. Modern Short Biographies. Random House Inc., 1979.
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