Pennsylvania Railroad & Louisiana Purchase Exposition. (1905). The Pennsylvania railroad system at the Louisiana Purchase Exposition: Locomotive tests and exhibits, Saint Louis, Missouri, 1904. Pennsylvania Railroad Co..
Citace podle Chicago (17th ed.)Pennsylvania Railroad a Louisiana Purchase Exposition. The Pennsylvania Railroad System at the Louisiana Purchase Exposition: Locomotive Tests and Exhibits, Saint Louis, Missouri, 1904. Philadelphia: Pennsylvania Railroad Co., 1905.
Citace podle MLA (8th ed.)Pennsylvania Railroad a Louisiana Purchase Exposition. The Pennsylvania Railroad System at the Louisiana Purchase Exposition: Locomotive Tests and Exhibits, Saint Louis, Missouri, 1904. Pennsylvania Railroad Co., 1905.
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