Covers: Open Library
Covers: Open Library

Identifies the source of abundance, tells how to generate affluence, and stresses the importance of knowledge.
| Format | Publisher | Year | ISBN |
|---|---|---|---|
| Audiobook · spa | Grijalbo | 2004 | 9781400092802 |
| Paperback | Grupo Editorial Norma | 2004 | 9789580481195 |
| Audiobook | Amber-Allen Publ., New World Library | 2003 | 9781878424761 |
| Hardcover | Excel Books | 2002 | 9788174460721 |
| Edition | Bantam Press | 1999 | 9780593044957 |
| Paperback | New World Library and Amber-Allen Publishing | 1998 | 9781878424341 |
| Edition · spa | Edivisión | 1995 | 9789688901427 |
| Edition · spa | Amber-Allen Pub. | 1995 | 9781878424051 |
| Edition | Barnes & Noble | 1994 | 9781566197199 |
| Edition | New World Library | 1993 | 9781880032428 |