Hopper, D. Cockpit Displays X. SPIE Digital Library.
Cita Chicago (17th ed.)Hopper, Darrel. Cockpit Displays X. SPIE Digital Library.
Cita MLA (9th ed.)Hopper, Darrel. Cockpit Displays X. SPIE Digital Library.
Atenció: Aquestes cites poden no estar 100% correctes.