Note VI-10 — Chapter VI · LIVING LIGHTS
Reading edition
Ruppelt, E. J. The Report on Unidentified Flying Objects. Garden City, N.Y.: Doubleday & Co., reprint, 1960.
Reading edition
Ruppelt, E. J. The Report on Unidentified Flying Objects. Garden City, N.Y.: Doubleday & Co., reprint, 1960.