| Europa League 1979/1980 - Appearances as Referee |  |
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| 19/03/1980 | Lokomotiv Sofia | - | VfB Stuttgart | 0:1 | - | - | - |
| Europa League 1979/1980 - Appearances as Referee | |
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| 19/03/1980 | Lokomotiv Sofia | - | VfB Stuttgart | 0:1 | - | - | - |
| Complete name: | John Clive Thomas |
| Born: | 22/06/1936 |
| Place of birth: |
Wales |
| Residence: | Treorchy |
| Nationality: |
Wales |