Artist: Rockman, Walt
 | Rockman, Walt | Sonoton SON 113 | GER 1980 | 25 € |
| - Underwater, Vol. 1 | ||||
| Rockman, Walt | Sonoton SON 115 | GER 1980 | 25 € |
| - Biology | ||||
| Rockman, Walt | Sonoton SON 116 | GER 1980 | 25 € |
| - Pollution | ||||
| Rockman, Walt | Sonoton SON 113 | GER 1980 | 25 € |
| - Underwater, Vol. 1 | ||||
| Rockman, Walt | Sonoton SON 115 | GER 1980 | 25 € |
| - Biology | ||||
| Rockman, Walt | Sonoton SON 116 | GER 1980 | 25 € |
| - Pollution | ||||