Cita APA (7th ed.)

Bullens, D. K. (1948). Steel and its heat treatment (5th ed.). Wiley.

Cita Chicago (17th ed.)

Bullens, Denison Kingsley. Steel and Its Heat Treatment. 5th ed. N.Y.: Wiley, 1948.

Cita MLA (8th ed.)

Bullens, Denison Kingsley. Steel and Its Heat Treatment. 5th ed. Wiley, 1948.