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Page (2001), p. 202. Page, Sophie (2001). "Richard Trewythian and the Uses of Astrology in Late Medieval England". Journal of the Warburg and Courtauld Institutes. 64. The Warburg Institute: 193–228. doi:10.2307/751562. JSTOR751562. S2CID160610768.
jstor.org
Page (2001), p. 193. Page, Sophie (2001). "Richard Trewythian and the Uses of Astrology in Late Medieval England". Journal of the Warburg and Courtauld Institutes. 64. The Warburg Institute: 193–228. doi:10.2307/751562. JSTOR751562. S2CID160610768.
Page (2001), p. 201. Page, Sophie (2001). "Richard Trewythian and the Uses of Astrology in Late Medieval England". Journal of the Warburg and Courtauld Institutes. 64. The Warburg Institute: 193–228. doi:10.2307/751562. JSTOR751562. S2CID160610768.
Page (2001), p. 202. Page, Sophie (2001). "Richard Trewythian and the Uses of Astrology in Late Medieval England". Journal of the Warburg and Courtauld Institutes. 64. The Warburg Institute: 193–228. doi:10.2307/751562. JSTOR751562. S2CID160610768.
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Page (2001), p. 193. Page, Sophie (2001). "Richard Trewythian and the Uses of Astrology in Late Medieval England". Journal of the Warburg and Courtauld Institutes. 64. The Warburg Institute: 193–228. doi:10.2307/751562. JSTOR751562. S2CID160610768.
Page (2001), p. 201. Page, Sophie (2001). "Richard Trewythian and the Uses of Astrology in Late Medieval England". Journal of the Warburg and Courtauld Institutes. 64. The Warburg Institute: 193–228. doi:10.2307/751562. JSTOR751562. S2CID160610768.
Page (2001), p. 202. Page, Sophie (2001). "Richard Trewythian and the Uses of Astrology in Late Medieval England". Journal of the Warburg and Courtauld Institutes. 64. The Warburg Institute: 193–228. doi:10.2307/751562. JSTOR751562. S2CID160610768.
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Ptolemy (1940), II, 2: p. 119: "And since weaker natures always yield to the stronger, and the particular always falls under the general, it would by all means be necessary for those who purpose an inquiry about a single individual long before to have comprehended the more general considerations". Ptolemy, Claudius (1940). Tetrabiblos. Loeb Classical Library. Translated by Frank Egleston Robbins. Harvard University Press. Retrieved 2022-11-20.