Tracklist
| Once | 8:11 |
| Once In The Middle Of Nowhere | 0:57 |
| Nowhere To Run To | 4:54 |
| The Black Cloud Of Islam | 3:00 |
| If | 3:19 |
| Winds Of Change | 1:29 |
| Berliners | 7:17 |
| Sleeping At The Wheel | 4:17 |
| For Longer Than It Takes | 4:19 |
| Ghost Dance | 3:52 |
Versions
| Category | Artist | Title (Format) | Label | Category | Country | Year |
|---|---|---|---|---|---|---|
| AWCD 1018 | Roy Harper | Once (CD, Album) | Awareness Records | AWCD 1018 | UK | 1990 |
| X2 13078 | Roy Harper | Once (CD, Album) | I.R.S. Records | X2 13078 | US | 1990 |
| LICD 9.00892 O, LICD 9.00892 | Roy Harper | Once (CD, Album) | Line Records, Line Records | LICD 9.00892 O, LICD 9.00892 | Germany | 1990 |
| AWT 1018 | Roy Harper | Once (Cass, Album) | Awareness Records | AWT 1018 | UK | 1990 |
| X4 13078 | Roy Harper | Once (Cass, Album) | Awareness Records | X4 13078 | US | 1990 |
| AWL 1018 | Roy Harper | Once (LP, Album) | Awareness Records | AWL 1018 | UK | 1990 |
| HUCD011 | Roy Harper | Once (CD, Album) | Science Friction | HUCD011 | UK | 1994 |
