Gabor S. Boritt · Geoffrey Baird · Geoffrey Beard · Geoffrey Bird
| title | media type | ISBN-13 | year of publica- tion |
|---|---|---|---|
| The Gettysburg Gospel: The Lincoln Speech That Nobody Knows | Paperback | 978-0-7432-8821-7 | 2008 |
| The Gettysburg Gospel: The Lincoln Speech That Nobody Knows | Audio CD | 978-1-4001-0351-5 | 2007 |
| The Gettysburg Gospel: The Lincoln Speech That Nobody Knows | " | 978-1-4001-3351-2 | 2007 |
| The Gettysburg Gospel: The Lincoln Speech That Nobody Knows | MP3 CD | 978-1-4001-5351-0 | 2007 |
| The Gettysburg Gospel: The Lincoln Speech That Nobody Knows | Hardcover | 978-0-7432-8820-0 | 2006 |