Hopper, D. Cockpit Displays IX: Displays for Defense Applications. SPIE Digital Library.
Chicago Style (17th ed.) CitationHopper, Darrel. Cockpit Displays IX: Displays for Defense Applications. SPIE Digital Library.
MLA (8th ed.) CitationHopper, Darrel. Cockpit Displays IX: Displays for Defense Applications. SPIE Digital Library.
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