| title | ISBN-13 (ISBN-10) | year of publica- tion |
|---|---|---|
| 914 Porsche: A Restorer's Guide to Authenticity | 978-0-929758-21-3 (0-929758-21-8) | 1999 |
| The 911 & 912 Porsche: A Restorer's Guide to Authenticity | 978-0-929758-00-8 (0-929758-00-5) | 1989 |
B. Johnson · D.B. Johnson · D. J. · D Johnson · Dr. Benjamin Heber Johnson