Jethro Tull
| Titel | År | Format | Ägare |
|---|---|---|---|
| This Was (Island, UK, 1968, Stereo) | 1968 | LP | 1 |
| This Was (Island, UK, Gatefold) | 1968 | LP | 1 |
| This Was (Music Hall, Reprise, ARG, Gatefold) | 1968 | LP | 1 |
| This Was (Reprise, Can.) | 1968 | LP | 1 |
| This Was (Reprise, Mex. 1968) | 1968 | LP | 1 |
| This Was (Reprise, NZ) | 1968 | LP | 1 |
| This Was (Reprise, US) | 1968 | LP | 1 |
| This Was (Reprise, US, Gatefold) | 1968 | LP | 1 |
| This Was (Sonet, Swe, 1968) | 1968 | LP | 1 |