Tracklist:
| A | The Wolf = El Lobo -Vocal Version | 5:25 |
| B | The Wolf = El Lobo -Instrumental Version | 4:55 |
Companias, etc
Distributed By: Max Music Productions, S.A.
Manufactured By: PolyGram Servicios, S.A.
Printed By: Gráficas Foco, S.A.
Lacquer Cut At: PolyGram Servicios, S.A.
Códigos e identificadores
| Matrix / Runout: Runout, A-side, machine stamped | 850 MAX 113\u2731A\u27311 |
| Matrix / Runout: Runout, B-side, machine stamped | 850 MAX 113\u2731B\u27311 |
| Rights Society: | SGAE |
| Depósito Legal: | B.8724-1985 |
| Other: PolyGram Servicios, S.A. | Permiso n\u00ba 6421 |
