APA (7th ed.) Citation

Ruppelt, E. J. (1956). The report on unidentified flying objects: By Edward J. Ruppelt. Doubleday.

Chicago Style (17th ed.) Citation

Ruppelt, Edward J. The Report on Unidentified Flying Objects: By Edward J. Ruppelt. Garden City, N.Y.: Doubleday, 1956.

MLA (9th ed.) Citation

Ruppelt, Edward J. The Report on Unidentified Flying Objects: By Edward J. Ruppelt. Doubleday, 1956.