Judah, T. D. (1857). A practical plan for building the Pacific railroad. H. Polkinhorn, Print..
Lua i Stíl Chicago (17ú heag.)Judah, Theodore D. A Practical Plan for Building the Pacific Railroad. Washington: H. Polkinhorn, Print., 1857.
Lua MLA (8ú heag.)Judah, Theodore D. A Practical Plan for Building the Pacific Railroad. H. Polkinhorn, Print., 1857.
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