United States. Department of the Interior. Office of Information. (1964). Natural resources of Oregon; "the Beaver State.". For sale by the Supt. of Docs., U.S. Govt. Print. Off..
Style de citation Chicago (17e éd.)United States. Department of the Interior. Office of Information. Natural Resources of Oregon; "the Beaver State.". [Washington: For sale by the Supt. of Docs., U.S. Govt. Print. Off., 1964.
Style de citation MLA (8e éd.)United States. Department of the Interior. Office of Information. Natural Resources of Oregon; "the Beaver State.". For sale by the Supt. of Docs., U.S. Govt. Print. Off., 1964.
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