Donald Victor Harper · Victor Herbert · Victor L. Harper · Viktoria Herber
| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| Handbook of Investment Products and Services | 978-0-13-378729-0 (0-13-378729-X) | 1975 |
| Nyif Investor's Desk Reference | 978-0-13-504747-7 (0-13-504747-1) | 1988 |