Versions
| Title, Format | Label | Cat# | Country | Year | |
|---|---|---|---|---|---|
| Substitute (7", Single) | Carrere | 49.350 | France | 1978 | |
| Substitute / When Will You Be Mine (7") | Carrere, Emi | EMI 2788 | UK | 1978 | |
| Substitute / When Will You Be Mine (7") | Emi | EMI 1044 | New Zealand | 1978 | |
| Substitute / When Will You Be Mine (7", Single) | Carrere | 2044 111 | Germany | 1978 | |
| Substitute (12") | Carrere | 8.015 | France | 1978 | |
| Substitute (7") | Polydor | 2044 111 | Germany | 1978 | |
| Substitute (7", Promo) | Carnaby | MO 1776 | Spain | 1978 | |
| Substitute (7", Promo) | Epic | 8-50591 | US | 1978 | |
| Substitute (7", Single) | Carnaby, Discos Columbia, S.A. | MO 1776, | Spain | 1978 |