Pedro el Venerable (Spanish Wikipedia)

Analysis of information sources in references of the Wikipedia article "Pedro el Venerable" in Spanish language version.

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archive.org

J. Kritzeck (1964). Princeton University Press, ed. Peter the Venerable and Islam. Princeton. pp. 14.
R.W. Southern (1962). Harvard University Press, ed. Western Views of Islam in the Middle Ages. Cambridge. pp. 37.