Cita APA (7a ed.)

Smiles, S., & Stephenson, R. (1889). The life of George Stephenson, railway engineer (From the 4th London ed.). Pioneer Press.

Cita Chicago Style (17a ed.)

Smiles, Samuel, y Robert Stephenson. The Life of George Stephenson, Railway Engineer. From the 4th London ed. [n. p.]: Pioneer Press, 1889.

Cita MLA (8a ed.)

Smiles, Samuel, y Robert Stephenson. The Life of George Stephenson, Railway Engineer. From the 4th London ed. Pioneer Press, 1889.