1. Bradley, M.C. Jr 1950 The Treatment of Pictures. Cambridge Art Technology: Massachusetts
2. Clarke, C.D. 1959 Pictures, Their Preservation and Restoration. The Standards Arts Press: Maryland
3. Emile-Mâle, G. 1976 The Restorer's Handbook of Easel Painting. Van Nostrand Reinhold: New York
4. International Museums Office 1940 Manual on the Conservation of Paintings. International Institute of Intellectual Co-operation: Paris