Polytechnic High School – Cancer at Poly High and Towne Elementary Schools: General Information and Correspondence, October-November 1999, id17693, Box: 42, Folder: 4. Tom Hayden Belmont Learning Complex Investigation Collection, URB-BLC. Special Collections & Archives. https://findingaids.csun.edu/repositories/2/archival_objects/91864 Accessed June 10, 2026.