| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| Aliens from Space: The Real Story of Unidentified Flying Objects | 978-0-385-06751-5 (0-385-06751-8) | 1973 |
| The Flying Saucers Are Real | 978-1-60506-547-2 (1-60506-547-1) | 2008 |
D.K · Donald E. · Donald E. Keyhoe · Donald K. · Donald Keyhoe · "E. K." · Edward K.