United States. Department of the Interior & Simpson, J. H. (1866). Report of the Secretary of the Interior: Report of James H. Simpson on the Union Pacific railroad .. Gov. Print. Off..
Style de citation Chicago (17e éd.)United States. Department of the Interior et J. H. Simpson. Report of the Secretary of the Interior: Report of James H. Simpson on the Union Pacific Railroad .. [Washington: Gov. Print. Off., 1866.
Style de citation MLA (8e éd.)United States. Department of the Interior et J. H. Simpson. Report of the Secretary of the Interior: Report of James H. Simpson on the Union Pacific Railroad .. Gov. Print. Off., 1866.
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