United States. National Transportation Safety Board. (1981). Aircraft accident report: Cascade Airways, Inc., Beechcraft 99A, N390CA, Spokane, Washington, January 20, 1981. The Board.
Chicago Style (17th ed.) CitationUnited States. National Transportation Safety Board. Aircraft Accident Report: Cascade Airways, Inc., Beechcraft 99A, N390CA, Spokane, Washington, January 20, 1981. Washington, D.C.: The Board, 1981.
MLA (9th ed.) CitationUnited States. National Transportation Safety Board. Aircraft Accident Report: Cascade Airways, Inc., Beechcraft 99A, N390CA, Spokane, Washington, January 20, 1981. The Board, 1981.
Warning: These citations may not always be 100% accurate.