Mark, H. F., Krik, R. E., Othmer, D. F., & Overberger,Charles G. (1984). Encyclopaedia of chemical technology V.9: Enamels, porcelain or virteous to ferrities (3.). Wiley- Interscience Publications.

Mark, Herman F., Raymond Eller Krik, Donald F. Othmer, and Overberger,Charles G. Encyclopaedia of Chemical Technology V.9: Enamels, Porcelain or Virteous to Ferrities. 3. New York: Wiley- Interscience Publications, 1984.

Mark, Herman F., et al. Encyclopaedia of Chemical Technology V.9: Enamels, Porcelain or Virteous to Ferrities. 3. Wiley- Interscience Publications, 1984.