Expenditures for protection, improvement, and management of National Parks. Letter from the Secretary of the Interior, transmitting a detailed statement of all expenditures under provisions of sundry civil act approved July 1, 1916, making appropriations for protection, improvement, and management of national parks. [electronic resource].
- Washington : [s.n.], 1916.
- Government document
2 p. : digital, PDF file.
- LexisNexis U.S. Serial Set Digital Collection
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