"From a view of the Grand Canyon to a vision of the twenty-first century", 1999 October

"From a view of the Grand Canyon to a vision of the twenty-first century", 1999 October, - 06 JWF 3 Sub- 4 Box 9 Folder 28, Box: 9, Folder: 28. John W. Firor Papers, - 06-JWF. National Center for Atmospheric Research (NCAR) Archives. https://aspace.archives.ucar.edu/repositories/2/archival_objects/9180 Accessed December 27, 2025.