Eade, J. C. (1984). The Forgotten Sky: A Guide to Astrology in English Literature. Oxford: Clarendon Press; New York: Oxford University Press.
Losev, A. (2012). “'Astronomy' or 'astrology': a brief history of an apparent confusion”. Journal of Astronomical History and Heritage 15 (1): 42–46. Bibcode:2012JAHH...15...42L. arXiv:1006.5209.
North, John David (1988). Chaucer's Universe. Oxford: Clarendon Press.
