Sela, S. (2001). The Fuzzy Borders Between Astronomy and Astrology as Reflected in the Thought and Work of Three Twelfth-Century Jewish Intellectuals. Aleph.
Chicago-referens (17:e uppl.)Sela, Shlomo. "The Fuzzy Borders Between Astronomy and Astrology as Reflected in the Thought and Work of Three Twelfth-Century Jewish Intellectuals." Aleph 2001.
MLA-referens (8:e uppl.)Sela, Shlomo. "The Fuzzy Borders Between Astronomy and Astrology as Reflected in the Thought and Work of Three Twelfth-Century Jewish Intellectuals." Aleph, 2001.
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