United States. Congress. House. Committee on Appropriations & ProQuest (Firm). (1872). Letter from the Acting Secretary of the Interior, relative to an appropriation for the expense of preparing, engraving, and publishing maps, charts, geological sections, and other illustrations. [publisher not identified].
Chicago Style (17th ed.) CitationUnited States. Congress. House. Committee on Appropriations and ProQuest (Firm). Letter from the Acting Secretary of the Interior, Relative to an Appropriation for the Expense of Preparing, Engraving, and Publishing Maps, Charts, Geological Sections, and Other Illustrations. Washington: [publisher not identified], 1872.
MLA (9th ed.) CitationUnited States. Congress. House. Committee on Appropriations and ProQuest (Firm). Letter from the Acting Secretary of the Interior, Relative to an Appropriation for the Expense of Preparing, Engraving, and Publishing Maps, Charts, Geological Sections, and Other Illustrations. [publisher not identified], 1872.