APA (7th ed.) Citation

Flammonde, P. (1971). The age of flying saucers: Notes on a projected history of unidentified flying objects. Hawthorn Books.

Chicago Style (17th ed.) Citation

Flammonde, Paris. The Age of Flying Saucers: Notes on a Projected History of Unidentified Flying Objects. New York: Hawthorn Books, 1971.

MLA (9th ed.) Citation

Flammonde, Paris. The Age of Flying Saucers: Notes on a Projected History of Unidentified Flying Objects. Hawthorn Books, 1971.