Citazione APA

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

Stile di citazione Chicago

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

Citazione MLA

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