Cita APA (7a ed.)

Bogdandy, L., & Engell, H. (1971). The reduction of iron ores, scientific basic and technology (1a ed.). Springer-Verlag.

Cita Chicago Style (17a ed.)

Bogdandy, L., y H.J Engell. The Reduction of Iron Ores, Scientific Basic and Technology. 1a ed. Berlin: Springer-Verlag, 1971.

Cita MLA (9a ed.)

Bogdandy, L., y H.J Engell. The Reduction of Iron Ores, Scientific Basic and Technology. 1a ed. Springer-Verlag, 1971.