| Year | 1968 |
| Date | 02-Aug |
| Volume | 134 |
| Issue | 3,350 |
| Page | 740 |
| Category | Internal Combustion |
| Part | |
| Title | Model Petrol Engines |
| Author | Edgar T.Westbury |
| Notes | Carburation and combustion, "Ladybird" 2.5 cc engine, combustion chamber design, twin two-stroke engines, the "Cherub" 10 cc. twin |