| title | ISBN-13 | year of publica- tion | other author(s) | |
|---|---|---|---|---|
| El Leonardo Desconocido | 978-0-07-090831-4 | 1974 | ||
| Leonardo: Forscher, Künstler, Magier | 978-3-8094-1848-1 | 2006 | Silvio A Bedini | |
| The Unknown Leonardo | 978-0-07-037196-5 | 1974 | ||
| Unknown Leonardo | 978-0-8109-8101-0 | 1990 | ||
| Unknown Leonardo | 978-0-09-120660-4 | 1974 | ||
Bassermann Verlag · Harry N. Abrams · McGraw-Hill · Random House