(1855). The present situation and future prospects of American railroads. Printed by T.K. and P.G. Collins.
Chicago-referens (17:e uppl.)The Present Situation and Future Prospects of American Railroads. Philadelphia: Printed by T.K. and P.G. Collins, 1855.
MLA-referens (8:e uppl.)The Present Situation and Future Prospects of American Railroads. Printed by T.K. and P.G. Collins, 1855.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.