APA (7th ed.) Citation

Leslie, D., & Adamski, G. (1953). Flying saucers have landed. British Book Centre.

Chicago Style (17th ed.) Citation

Leslie, Desmond, and George Adamski. Flying Saucers Have Landed. New York: British Book Centre, 1953.

MLA (9th ed.) Citation

Leslie, Desmond, and George Adamski. Flying Saucers Have Landed. British Book Centre, 1953.

Warning: These citations may not always be 100% accurate.