- Artist
- Quarterflash
- Title
- Harden My Heart
- Label
- Geffen Records PRO-A-987
- Country
- US
- Released
- 1981
- Format
- 12", 33 ⅓ RPM, Promo
Other US pressings of Harden My Heart
- 1981Geffen Records GEF 498247", Promo
- 1981Geffen Records GEF498247", Single, 45 RPM
- 1981Geffen Records GEF498247", Single, 45 RPM
- 1981Geffen Records GEF498247", Single, 45 RPM
- 1981Geffen Records GEF498247", Single, 45 RPM
- ?Geffen Records GGEF 042645 RPM, 7", Single, Reissue
- ?Geffen Records GGEF 04267", 45 RPM, Single, Stereo
- ?Geffen Records GGEF 04267", 45 RPM, Single, Reissue, Stereo