J. H. · John E. Haggai · John Edmund Haggai · John H.
Editorial Portavoz · HarperCollins
| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| Sea un lider influyente | 978-0-8254-1334-6 (0-8254-1334-6) | 2011 |
| The Seven Secrets of Effective Business Relationships | 978-0-00-274061-6 (0-00-274061-3) | 1999 |