Dyfyniad APA

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

Dyfyniad Arddull Chicago

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

Dyfyniad MLA

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

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