Tracklist Hide Credits
| A1 | SheilaAdapted By – C. MapelWritten-By – Tommy Roe |
| A2 | En Un Mar Azul = In Un MareAdapted By – Mario S. RuizWritten-By – Leoni*, Mogol, Dallara* |
| B1 | Sag Warum (Oh Why?) = ¿Y Por Qué?Adapted By – F. Carreras*Written-By – Harvey P. Spector* |
| B2 | Yo... Era Written-By – A. Guijarro*, A. Algueró* |
Companies, etc.
- Manufactured By – Compañia Del Gramofono-Odeon, S.A.E.
- Printed By – T.G. Hostench, S.A.
Barcode and Other Identifiers
- Matrix / Runout (Printed A side label): 7TKA 2269
- Matrix / Runout (Printed B side label): 7TKA 2270
- Depósito Legal: B.8454-1963
- Rights Society (Boxed): B.I.E.M.
