| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| Auto analisis | 978-970-05-0684-5 (970-05-0684-3) | |
| Los problemas del trabajo | 978-970-05-0685-2 (970-05-0685-1) | 1997 |
| Manual basico de estudio | 978-970-05-0671-5 (970-05-0671-1) | 1997 |
HUBBARD RONALD · L. Ronald Hubbard · Lafayette Ronald Hubbard · R. H. · RONALD L. HUBBARD