| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| The freelancer's handbook: A comprehensive guide to selling your freelance services | 978-0-13-330696-5 (0-13-330696-8) | 1981 |
| The Freelancer's Handbook: A Guide to Selling Your Freelance Services | 978-0-13-330688-0 (0-13-330688-7) | 1981 |