Stranges, F. E. (1985). The ufo conspiracy: Illustrated. I.E.C. Publishing Company.
Cita Chicago (17th ed.)Stranges, Frank E. The Ufo Conspiracy: Illustrated. California: I.E.C. Publishing Company, 1985.
Cita MLA (9th ed.)Stranges, Frank E. The Ufo Conspiracy: Illustrated. I.E.C. Publishing Company, 1985.
Atenció: Aquestes cites poden no estar 100% correctes.