Cita APA (7th ed.)

Keel, J. A. (1971). Operation Trojan horse: An exhaustive study of unidentified flying objects - revealing their source and the forces that control them. Souvenir Press.

Cita Chicago (17th ed.)

Keel, John A. Operation Trojan Horse: An Exhaustive Study of Unidentified Flying Objects - Revealing Their Source and the Forces That Control Them. London: Souvenir Press, 1971.

Cita MLA (8th ed.)

Keel, John A. Operation Trojan Horse: An Exhaustive Study of Unidentified Flying Objects - Revealing Their Source and the Forces That Control Them. Souvenir Press, 1971.