Results of spirit leveling in Iowa 1896 to 1909, inclusive / R.B. Marshall.
- Physical Description: 1 online resource (32 pages, I page of plates) : illustrations.
- Publisher: Washington, D.C. : Department of the Interior, United States Geological Survey, 1911.
- Distributor: Washington : Government Printing Office
Title from title screen (viewed June 30, 2014).
On cover: "Work done in cooperation with the state of Iowa from 1907 to 1909, inclusive."
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|Subject:||Iowa > Altitudes.