Written by: Geezer Butler, Tony Iommi, Ozzy Osbourne, Bill Ward

Lyrics by: Geezer Butler, Tony Iommi, Ozzy Osbourne, Bill Ward

Produced by: Black Sabbath (co), Mike Butcher

Performed by: Geezer Butler (electric bass guitar), Tony Iommi (electric guitar), Bill Ward (drums (drum set)), Ozzy Osbourne (lead vocals)