Wolmar, C. (2014). The iron road: An illustrated history of the railroad (First American edition.). DK Publishing.
Citace podle Chicago (17th ed.)Wolmar, Christian. The Iron Road: An Illustrated History of the Railroad. First American edition. London: DK Publishing, 2014.
Citace podle MLA (9th ed.)Wolmar, Christian. The Iron Road: An Illustrated History of the Railroad. First American edition. DK Publishing, 2014.
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