Cita APA (7a ed.)

Thum, E. E. (1939). Modern Steels: Manufacture, Inspection, Treatment and Uses. American Society for Metals.

Cita Chicago Style (17a ed.)

Thum, Ernest E. Modern Steels: Manufacture, Inspection, Treatment and Uses. Ohio: American Society for Metals, 1939.

Cita MLA (8a ed.)

Thum, Ernest E. Modern Steels: Manufacture, Inspection, Treatment and Uses. American Society for Metals, 1939.