Author
Etats-Unis. Department of the Interior
1
Geographical Surveys West of the 100th Meridian (Etats-Unis)
1
Geological and Geographical Survey of the Territories (Etats-Unis)
1
Hayden, Ferdinand Vandeveer (1829-1887)
1
Ludlow, William (1843-1901)
1
Wheeler, George Montague (1842-1905)
1
États-Unis. Army. Corps of engineers
1