| A | The Doctor | 2:20 |
| B | Two Lovers History | 3:05 |
| Category | Artist | Title (Format) | Label | Category | Country | Year |
|---|---|---|---|---|---|---|
| JB 5621 | Mary Wells | The Doctor / Two Lovers History (7") | Jubilee | JB 5621 | US | 1968 |
| 45-5621 | Mary Wells | The Doctor / Two Lovers History (7", Promo) | Jubilee | 45-5621 | US | 1968 |
| SN-20.106 | Mary Wells | The Doctor (El Doctor) / Two Lovers History (7", Single) | Sonoplay, Jubilee | SN-20.106 | Spain | 1968 |
| JGN NP 07002 | Mary Wells | The Doctor / Two Lovers History (7") | Jubilee | JGN NP 07002 | Italy | 1968 |
| SS 2111 | Mary Wells | The Doctor / Two Lovers History (7") | Stateside | SS 2111 | UK | 1968 |