| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| children Encyclopedia: Dinosaur World Exploration | 978-7-5358-3113-2 (7-5358-3113-3) | 1991 |
| Children s Encyclopedia: Animal World Exploration | 978-7-5358-3114-9 (7-5358-3114-1) | 1991 |
| Children s Encyclopedia: Great to explore the plant kingdom | 978-7-5358-3115-6 (7-5358-3115-X) | 1991 |