Chandler, G. (2003). The Pentagon's flying saucer problem: And why test pilots wanted no part of it.
Chicago-Zitierstil (17. Ausg.)Chandler, Graham. The Pentagon's Flying Saucer Problem: And Why Test Pilots Wanted No Part of It. 2003.
MLA-Zitierstil (9. Ausg.)Chandler, Graham. The Pentagon's Flying Saucer Problem: And Why Test Pilots Wanted No Part of It. 2003.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.