Human Exploration of Space, A Review of NASA's 90-Day Study and Alternatives, 1990

Human Exploration of Space, A Review of NASA's 90-Day Study and Alternatives, 1990, TRU_001_004_002_007. Richard H. Truly Collection, TRU_001. Regis University Archives and Special Collections. https://regisuniarchives.coalliance.org/repositories/2/archival_objects/5922 Accessed December 19, 2025.