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APA Citation
Voigts, L. E. (2008). wolfenbüttel HAB Cod. Guelf. 51. 9. Aug. 4º and BL, Harley MS. 3542: Complementary Witnesses to Ralph Hoby's 1437 Treatise on Astronomical Medicine. Electronic British Library journal, , . http://access.bl.uk/ark:/81055/vdc_100056890516.0x000001