| Year | 2014 |
| Date | 05-Sep |
| Volume | 213 |
| Issue | 4,490 |
| Page | 367 |
| Category | Internal Combustion |
| Part | 4 |
| Title | Internal Combustion Theory and Practice |
| Author | Ron Wright |
| Notes | A retired technical college teacher provides an in-depth course in I/C. Cam profile measurement, rocker ratio |