Kupchella, C. E., 1987. "Risky business: saccharin, nuclear power and crossing the street in perspective," North American Association for Environmental Education, Annual Meeting, Quebec City, Quebec, Canada.

Kupchella, C. E., 1987. "Risky business: saccharin, nuclear power and crossing the street in perspective," North American Association for Environmental Education, Annual Meeting, Quebec City, Quebec, Canada., Folder 63, Box: 1, Folder: 63. Charles E. Kupchella Papers, OGLMC-1544. Elwyn B. Robinson Department of Special Collections. https://archives.und.edu//repositories/2/archival_objects/105071 Accessed November 23, 2025.