Walters, E., & Walters, F. (1990). The Gulf Breeze sightings: The most astounding multiple sightings of UFO's in U.S. history. New York: W. Morrow.
Чикагска система за цитиранеWalters, Ed, и Frances Walters. The Gulf Breeze Sightings: The Most Astounding Multiple Sightings of UFO's in U.S. History. New York: W. Morrow, 1990.
MLA формат за цитиранеWalters, Ed, и Frances Walters. The Gulf Breeze Sightings: The Most Astounding Multiple Sightings of UFO's in U.S. History. New York: W. Morrow, 1990.
Внимание: Тези цитати може да не са 100% точни.