APA (7th ed.) Citation

Story, R., & Greenwell, J. R. (1980). The Encyclopedia of UFO's. Dolphin Books.

Chicago Style (17th ed.) Citation

Story, Ronald, and J. Richard Greenwell. The Encyclopedia of UFO's. Garden City, N.Y.: Dolphin Books, 1980.

MLA (9th ed.) Citation

Story, Ronald, and J. Richard Greenwell. The Encyclopedia of UFO's. Dolphin Books, 1980.