Stranges, F. E. (1985). The ufo conspiracy: Illustrated. I.E.C. Publishing Company.
Dyfyniad Arddull ChicagoStranges, Frank E. The Ufo Conspiracy: Illustrated. California: I.E.C. Publishing Company, 1985.
Dyfyniad MLAStranges, Frank E. The Ufo Conspiracy: Illustrated. I.E.C. Publishing Company, 1985.
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