Tracklist
| Imunização Racional | 5:09 |
| Rational Culture | 2:16 |
| Bom Senso | 3:30 |
| Universo Em Desencanto | 3:45 |
Versions
| Category | Artist | Title (Format) | Label | Category | Country | Year |
|---|---|---|---|---|---|---|
| 0003 | Tim Maia | Racional Vol 1 (7") | Seroma | 0003 | Brazil | 1975 |
| DED 471 | Tim Maia | Racional (7") | Lyra | DED 471 | Bolivia | 1974 |
