- Libro electrónicoFact, Fiction, and Flying SaucersStanton T. Friedman
- Libro electrónicoCaptured! The Betty and Barney Hill UFO Experience (60th Anniversary Edition)Stanton T. Friedman
- Libro electrónicoThe Alien Abduction FilesKathleen Marden
- Libro electrónicoThe Alien Abduction FilesKathleen Marden
- Libro electrónicoExtraterrestrial ContactKathleen Marden