| title | ISBN-13 | year of publication |
|---|---|---|
| Business Presentations and Public Speaking | 978-0-07-001565-4 | 1996 |
| High gloss | 978-0-312-37232-3 | 1979 |
| The Over-Achievers | 978-0-445-04000-7 | 1976 |
| The SOHO* Desk Reference: A Practical A to Z Guide for Entrepreneur | 978-0-06-270144-2 | 1997 |
H. E. · H Engel · P.E. · P Engel · P. H. · Peter E. · Peter Engel · Peter H.
HarperCollins · McGraw-Hill · Popular Library · St. Martin's Press