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- Cooperative National Park Resources Studies Unit (Tucson, Ariz.)17
- Bennett, Peter S.3
- Kunzmann, Michael R.3
- Bailowitz, Richard A. (Richard Allen)2
- Johnson, R. Roy (Raymond Roy), 1932-2
- Tamarisk Conference (1987 : University of Arizona)2
- United States. National Park Service. Western Regional Office2
- Brown, Bruce1
- Brown, Bryan T.1
- Davis, Russell1
- Duncan, Douglas Keith, 1960-1
- Fisher, Stuart G.1
- Holm, Peter A.1
- Jaques, Deborah L.1
- Keeney, Thomas W.1
- Kingsley, Kenneth J. (Kenneth James)1
- Kingsley, Kenneth James1
- Lowe, Charles H.1
- Maughan, O. Eugene1
- McAuliffe, Joseph R.1