| Europa League 1973/1974 - Appearances as Referee |  |
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| 19/09/1973 | FC Carl Zeiss Jena | - | MP Mikkeli | 3:0 | 4 | - | 1 |
| Europa League 1973/1974 - Appearances as Referee | |
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|
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| 19/09/1973 | FC Carl Zeiss Jena | - | MP Mikkeli | 3:0 | 4 | - | 1 |
| Complete name: | John Clive Thomas |
| Born: | 22/06/1936 |
| Place of birth: |
Wales |
| Residence: | Treorchy |
| Nationality: |
Wales |