Mary Hopkin / Knock Knock Who's There
Format 7*
Artist Mary Hopkin
Title Knock Knock Who's There
Label Apple Records
Catalog No 1855
Released 1972
Tracks
A1. (2:28) Knock Knock Who's There
(John Carter/Geoff Stephens)
B1. (3:32) International
(Benny Gallagher/Graham Lyle)
Packaging 7" 1x1 Sleeve