Cita APA (7a ed.)

Williams, R. S. (1948). Principles of Metallography. McGraw-Hill Book Co..

Cita Chicago Style (17a ed.)

Williams, Robert S. Principles of Metallography. New York: McGraw-Hill Book Co., 1948.

Cita MLA (9a ed.)

Williams, Robert S. Principles of Metallography. McGraw-Hill Book Co., 1948.