Author
United States. Congress. House of Representatives
United States. Department of the Interior
3
United States. Department of the Interior. Geological Survey
3
Brooks, Alfred Hulse, 1871-1924
2
Martin, George C.
2
Brooks, Alfred Hulse
1
Condit, D. Dale
1
Emmons, William H.
1
English, Walter A.
1
Harrington, George Levitt, 1883-?
1
Larsen, Esper S.
1
Mertie, John Beaver, noorem, 1888-?
1
Wells, Roger C.
1