Cita APA (7th ed.)

Williams, R. S., & Homerberg, V. O. (1948). Principles of metallography (5th ed.). McGraw-Hill.

Cita Chicago (17th ed.)

Williams, Robert S.,, i V. O. Homerberg. Principles of Metallography. 5th ed. N.Y.: McGraw-Hill, 1948.

Cita MLA (8th ed.)

Williams, Robert S.,, i V. O. Homerberg. Principles of Metallography. 5th ed. McGraw-Hill, 1948.