Hamburger, Jeffrey2020-07-292011Hamburger, Jeffrey F. 2011. Rules to live by: a late thirteenth-century "De Regimine mensium". Harvard Library Bulletin 21 (1-2): 19-35.0017-8136https://nrs.harvard.edu/URN-3:HUL.INSTREPOS:37363337en-USRules to live by: a late thirteenth-century "De Regimine mensium"Journal Article2020-07-29