http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
28 unnumbered pages : illustrations, maps ; 28 cm.
conducted by Montana State Highway Commission Planning Survey ; in cooperation with U.S. Department of Commerce, Bureau of Public Roads and U.S. Department of the Interior, National Park Service.
The Al Stonestreet Parks and Recreation Collection, 1997.
Montana. State Highway Commission. Planning Survey Division.
[Helena, Mont.] : Montana State Highway Commission, Planning Survey, 1951 (Helena : Naegele)