First National Symposium on Hail Suppression, 1965

First National Symposium on Hail Suppression, 1965, - 06 PDT 2 Box 8 Folder 112, Box: 8, Folder: 112. Philip Duncan Thompson Papers, - 06-PDT. National Center for Atmospheric Research (NCAR) Archives. https://aspace.archives.ucar.edu/repositories/2/archival_objects/1110 Accessed April 21, 2026.