Gaya APA

Barna, S, C, C, G, L. (1992). Handbook of Industrial Refractories Tecnology, Principles, Types, Properties and Applications . USA: Noyes Publication.

Gaya MLA

Barna, Stephen, C., Carniglia,, Gordon, L.. "Handbook of Industrial Refractories Tecnology, Principles, Types, Properties and Applications". USA: Noyes Publication, 1992. Text.