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Dänemark| Label: | King Records (3) 45-5394 |
| Genre: | Funk / Soul |
| Style: | Rhythm & Blues |
| Format: | Vinyl (7" , 45 RPM) |
| A | Sleep » Written-By: E. Lebieg | 2:52 |
| B | There's A Difference » Written By: Stevenson-Hall-Williams | 2:25 |
| Label: | Parlophone 45-R 4699 |
| Genre: | Funk / Soul |
| Format: | Vinyl (7") |
| A1 | There's A Difference | |
| B1 | Sleep |
| Label: | Delta (8) D-3108 |
| Genre: | Funk / Soul |
| Style: | Rhythm & Blues |
| Format: | Vinyl (7" , Single , 45 RPM) |
| A | Sleep » Written-By: E. Lebieg | 2:52 |
| B | There's A Difference » Written By: Stevenson - Hall - Williams | 2:25 |
| Label: | King Records (3) 45-5394 |
| Genre: | Funk / Soul |
| Style: | Rhythm & Blues |
| Format: | Vinyl (7" , 45 RPM) |
| A | Sleep » Written-By: E. Lebieg | 2:52 |
| B | There's A Difference » Written By: Stevenson-Hall-Williams | 2:25 |
