Smiles, S., & Stephenson, R. (1889). The life of George Stephenson, railway engineer (From the 4th London ed.). Pioneer Press.
Chicago-referens (17:e uppl.)Smiles, Samuel, och Robert Stephenson. The Life of George Stephenson, Railway Engineer. From the 4th London ed. [n. p.]: Pioneer Press, 1889.
MLA-referens (8:e uppl.)Smiles, Samuel, och Robert Stephenson. The Life of George Stephenson, Railway Engineer. From the 4th London ed. Pioneer Press, 1889.
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