Cita APA (7a ed.)

Kehl, G. L. (1949). The principles of metallographic laboratory practice (3a ed.). McGraw-Hill Book Company..

Cita Chicago Style (17a ed.)

Kehl, George L. The Principles of Metallographic Laboratory Practice. 3a ed. Nueva York: McGraw-Hill Book Company., 1949.

Cita MLA (9a ed.)

Kehl, George L. The Principles of Metallographic Laboratory Practice. 3a ed. McGraw-Hill Book Company., 1949.