Donald A. Swanson

تاريخ الميلاد: 25 يوليو 1938

الأعمال

Mount St Helens: Minute by Minute★ 0.0
Mount St Helens: Minute by Minute2025
Surviving the Mount St. Helens Disaster★ 6.2
Surviving the Mount St. Helens Disaster2020