Author
United States. Department of State
27
Mexico
25
Infobase,
22
Independent Production Fund,
17
Smithsonian Institution
12
Army War College (U.S.). Strategic Studies Institute
10
Commission for Environmental Cooperation (Montréal, Québec)
8
Alcaraz, Roberto,
5
Odyssey Networks (Firm),
5
University of Colorado Boulder. Natural Hazards Research and Applications Information Center
5
Vasquez, Leticia,
5
U.S. Fish and Wildlife Service
4
U.S. Fish and Wildlife Service. Division of International Conservation
4
United States. National Marine Fisheries Service
4
Commission for Environmental Cooperation (Montréal, Québec). Secretariat
3
Cornucopia Productions Ltd
3
Geological Survey (U.S.)
3
Hobbs, Horton H. 1914-1994
3
Iliffe, Thomas M.
3
Kornicker, Louis S., 1919-2018
3
Schulz, Donald E., 1942-
3
United States. Bureau of Transportation Statistics
3
Abbatiello, Michael J.
2
Baker, Edward W., 1914-2005
2
Barnard, J. Laurens 1928-1991
2
Brook Lapping Productions
2
Colorado International Trade Office
2
Gratton, Vivian G.
2
Grayson, George W., 1938-2015
2
Procuraduría Federal de Protección al Ambiente (Mexico)
2
SpringerLink (Online service)
2
Tuttle, Donald M. 1917-
2
United States. Bureau of the Census
2
United States. Department of Agriculture. Economic Research Service
2
United States. Government Accountability Office
2
Wager, Stephen J.
2
Alarcón, Rafael,
1
Ardekani, Siamak Assaee
1
Basurto, Xavier
1
Biggins, Rosemary
1
Blancas Vázquez, José Juan
1
Brandeler, Francine van den
1
Brown, Evan
1
California. State Lands Commission
1
Capital, Sinergia
1
Carney, Stephen A.
1
Carrasco, Davíd
1
Casas, Alejandro
1
Center of Military History
1
Chapman, Brian R.
1
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