Smiles, S., & Stephenson, R. (1889). The life of George Stephenson, railway engineer (From the 4th London ed.). Pioneer Press.
Chicago-viite (17. p.)Smiles, Samuel, ja Robert Stephenson. The Life of George Stephenson, Railway Engineer. From the 4th London ed. [n. p.]: Pioneer Press, 1889.
MLA-viite (8. p.)Smiles, Samuel, ja Robert Stephenson. The Life of George Stephenson, Railway Engineer. From the 4th London ed. Pioneer Press, 1889.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.