| title | ISBN-13 | year of publication |
|---|---|---|
| Animal Heroes: Stories of Courageous Family Pets and Animals in the Wild | 978-0-02-625910-1 | 1979 |
| Personal computers: What they are & how to use them | 978-0-13-657874-1 | 1978 |
| Personal Computers: What They Are and How to Use Them | 978-0-13-658748-4 | 1979 |
| Personal Computers: What They are and How to Use Them | 978-0-13-657866-6 | 1978 |