Cita APA (7a ed.)

Percy, J. Metallurgy the art of extracting metals from their ores.

Cita Chicago Style (17a ed.)

Percy, John. Metallurgy the Art of Extracting Metals from Their Ores. London.

Cita MLA (8a ed.)

Percy, John. Metallurgy the Art of Extracting Metals from Their Ores.