1. Painting Materials: A Short Encyclopaedia;Gettens,1966
2. The Painter's Methods and Materials;Laurie,1988
3. On Picture Varnishes and their Solvents;Feller,1987
4. The Artist's Handbook of Materials and Techniques;Mayer,1991
5. R.J. Gettens, G.L. Stout, pp. 25,124.