- Artist
- Mary Hopkin
- Title
- Knock, Knock Who's There ?
- Label
- Apple Records APPLE 26
- Country
- UK
- Released
- March 20, 1970
- Format
- 7", 45 RPM, Single
- Format notes
- Solid Centre
Runout and matrix codes
Etched or stamped in the dead wax between the last track and the label. If yours match, you have this pressing.
- APPLE 26 A - 1U KTSide A Stamped Run-out
- APPLE 26 B - 1U KTSide B Stamped Run-out
Other UK pressings of A Song For Europe
- 1970Apple Records APPLE 267", 45 RPM, Single
- 1970Apple Records APPLE 267", 45 RPM, Single
- 1970Apple Records APPLE 267", 45 RPM, Single
- 1970Apple Records APPLE 267", 45 RPM, Single
- 1970Apple Records APPLE 267", 45 RPM, Single
- 1970Apple Records APPLE-267", 45 RPM, Single
- 1970Apple Records APPLE 267", 45 RPM, Single
- 1970Apple Records APPLE 267", 45 RPM, Single