Cita APA (7th ed.)

Liddell, D. M., & Doan, G. E. (1933). The principles of metallurgy. McGraw-Hill.

Cita Chicago (17th ed.)

Liddell, Donald M., i Gilbert E. Doan. The Principles of Metallurgy. Nueva York: McGraw-Hill, 1933.

Cita MLA (9th ed.)

Liddell, Donald M., i Gilbert E. Doan. The Principles of Metallurgy. McGraw-Hill, 1933.