Author
United States. National Park Service
Geological Survey (U.S.)
17
Billingsley, George H.
6
Felger, Tracey J.
5
Priest, Susan S.
5
Sonoran Desert Field Station (Tucson, Ariz.)
4
United States. Bureau of Land Management. Arizona Strip District
4
University of Arizona. School of Renewable Natural Resources
4
Halvorson, William L. 1943-
3
Powell, Brian F.
3
Schmidt, Cecilia A.
3
United States. Forest Service
3
Architectural Resources Group
2
Navajo Nation, Arizona, New Mexico & Utah
2
Thomas, Blakemore E.
2
U.S. Fish and Wildlife Service
2
Block, Debra L.
1
Brown, Juliane B.
1
Clemensen, A. Berle
1
Colorado State University. Department of Atmospheric Science
1
Cooperative Institute for Research in the Atmosphere (Fort Collins, Colo.)
1
Drost, Charles A.
1
Dyer, Helen C.
1
Hastings, Homer F.
1
Hopi Tribe of Arizona
1
John Milner Associates
1
Kaibab Band of Paiute Indians of the Kaibab Indian Reservation, Arizona
1
Lake Mead National Recreation Area (Agency : U.S.)
1
Livingston, Douglas
1
Monroe, Stephen A.
1
Parker, John T. C.
1
Poulos, Gregory S.
1
Schroeder, Albert H.
1
United States. Bureau of Land Management
1
United States. National Oceanic and Atmospheric Administration
1