| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| Corporate Publications in Print | 978-0-07-047140-5 (0-07-047140-1) | 1980 | |
| The Must Words: The 6000 Most Important Words for a Successful and Profitable Vocabulary | 978-0-07-047141-2 (0-07-047141-X) | 1983 | Peter Norback |