Tracklist
| Sin Corazon | 2:20 |
| Tu, La Unica | 2:09 |
Versions
| Category | Artist | Title (Format) | Label | Category | Country | Year |
|---|---|---|---|---|---|---|
| 321.276 | Los Buhos | Sin Corazon / Tu, La Unica (7", Single) | CBS | 321.276 | Argentina | 1964 |
| 321.276 | Los Buhos | Sin Corazon / Tu, La Unica (7", Single, Promo) | CBS | 321.276 | Argentina | 1964 |
