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..
Cytowanie według stylu Chicago (wyd. 17)Pennsylvania Railroad i 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.
Cytowanie według stylu MLA (wyd. 8)Pennsylvania Railroad i 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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