Cita APA (7a ed.)

Hedges, E. S. (1946). Non-Ferrous metals (1a ed.). [s.n.].

Cita Chicago Style (17a ed.)

Hedges, Ernest S. Non-Ferrous Metals. 1a ed. Cambridge: [s.n.], 1946.

Cita MLA (9a ed.)

Hedges, Ernest S. Non-Ferrous Metals. 1a ed. [s.n.], 1946.