Oorspronkelijk: S.O.S. Sheet Music by ABBA.. Where are those happy days, they seem so hard to find. ABBA. EMI Music Publishing. Solero.
Vertaling: S.O.S. Bladmuziek van ABBA.. Benny Andersson, Björn Ulvaeus, Stig Erik Leopold Anderson. Engels. 0-7579-0315-0. Plan. Vocal. Chords.