ISBN 0-271-01230-7*Hicks, Michael A., "Revolution and consumption in late medieval England", Boydell & Brewer, 2001*Hunt, Edwin S. & Murray, James H., "A history of business in Medieval Europe, 1200–1550.
ISBN 0-271-01230-7* Hunt, Edwin S. & Murray, James H., "A history of business in Medieval Europe, 1200—1550.