| Referee | Country |  |
W | D | L |  |
 |
 |
 |
|---|---|---|---|---|---|---|---|---|---|
| Romualdo Arppi Filho |
|
1 | 0 | 1 | 0 | 1 | 0 | 0 | 0 |
| Aurelio Bossolino |
|
1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 |
| Ángel Pazos |
|
1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 |
| Alberto Tejada |
|
1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 |
| Oscar Veiro |
|
1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 |
Paraguay