Fullformexpand.com, 2026. "3O9." Accessed May 2, 2026. https://www.fullformexpand.com/3o9/shangri-la-airport-grand-lake-regional-airport-afton-oklahoma-usa.
"3O9." (n.d.). Fullformexpand.com. Retrieved May 2, 2026, from https://www.fullformexpand.com/3o9/shangri-la-airport-grand-lake-regional-airport-afton-oklahoma-usa.
3O9. (2026). Fullformexpand.com. Available at: https://www.fullformexpand.com/3o9/shangri-la-airport-grand-lake-regional-airport-afton-oklahoma-usa (Accessed: 2 May 2026).