s29.
Juliet B. Schor (1992), The Overworked American: The Unexpected Decline of Leisure, pp 46–47. For other views of medieval working time, see Eamon Duffy (1992), The Stripping of the Altars (40–50 days), pp 42–43; Keith Grint (1991), The Sociology of Work (one-third of the year including Sundays—i.e., 70 days), p 329.