Tracklist
| A | She'll Never Know I'm Blue = Nunca Sabra Que Estoy Triste | 2:07 |
| B | Friend = Amigo | 2:50 |
Companies, etc.
- Distributed By – Industrias Eléctricas y Musicales Odeon, S.A.
- Manufactured By – Industrias Eléctricas y Musicales Odeon, S.A.
Credits
- Written-By – Héctor Sepúlveda*
