Translation by Joannes Hispalensis of the author's Kitab ahkam sini al-mawalid and other writings, based in great part on al-Kindî. cf. Sarton. An introd. to the hist. of science. Baltimore [1927] v. 1, p. 568; and Enzyk. d. Islam. Ed. by Johannes Angelus. Imprint from colophon.
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