La duda

Credits

• Alejandro Monroy
  arranger, synthesizer
• Andrea Bronston
  background vocals
• Andy Pask
  bass
• Benny Faccone
  task
• Emilio Cuervo
  background vocals
• Enrique Sequero
  background vocals
• Hugh Burns
  guitar
• Ian Thomas
  drums (drum set)
• Jess Bailey
  synthesizer
• John Mallison
  recording
• Jose Vinader
  recording
• Juan Carlos Calderón
  arranger
• Juan Carlos Calderón Fernández
  arranger
• Juan Cerro
  guitar
• Simon Chamberlain
  synthesizer
• Steve Taylor
  recording
• Tito Duarte
  percussion, saxophone