Polytechnic High School – Health Problems Potentially Related to Toxic Conditions at LAUSD Schools: Rough Draft of Transcript, 1999 October 25, id17701, Box: 42, Folder: 12. Tom Hayden Belmont Learning Complex Investigation Collection, URB-BLC. Special Collections & Archives. https://findingaids.csun.edu/repositories/2/archival_objects/91872 Accessed June 14, 2026.