Note IV-2 — Chapter IV · THE SPANGLED HEAV’NS: STARS AND PLANETS
Reading edition
Ruppelt, E. J. The Report on Unidentified Flying Objects. Garden City, N.Y.: Doubleday & Co., 1956.
Reading edition
Ruppelt, E. J. The Report on Unidentified Flying Objects. Garden City, N.Y.: Doubleday & Co., 1956.