| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| Behind The Flying Saucers -- The Truth About The Aztec UFO Crash | 978-1-6O611-O2O-1 (1-6O611-O2O-9) | 2008 | Frank Scully · Sean Casteel · Material Supplied By Scott Ramsey · Stanton Friedman · Nick Redfern |