| Year | 1989 |
| Date | 16-Jun |
| Volume | 162 |
| Issue | 3,851 |
| Page | 769 |
| Category | Railway |
| Part | 11 |
| Title | Making Tracks. The Design, Construction and Maintenance of Ground Level Miniature Railways |
| Author | Dennis Monk |
| Notes | The drive mechanism, point motors, other methods of point control: mechanical, compressed air, hydraulic, the turntable |