Jones, W. Scramjet breaks Mach 7 in NASA test. IEEE spectrum.
Cita Chicago (17th ed.)Jones, W.D. "Scramjet Breaks Mach 7 in NASA Test." IEEE Spectrum .
Cita MLA (9th ed.)Jones, W.D. "Scramjet Breaks Mach 7 in NASA Test." IEEE Spectrum, .
Atenció: Aquestes cites poden no estar 100% correctes.