On Through The Night Hard Rock 1980 LP, Cassette Studio PolyGram Records Inc. (US); Phonogram Ltd. (UK) SRM-1-3828 (LP); MCR4-1-3828 (Cassette) (US); 6360180 (UK) (Colonel) Tom Allom Def Leppard's first Album On Through The Night Hard Rock 1980 Compact Disc Studio PolyGram Records Inc. (US); Phonogram Ltd. (UK) 822-533-2 042282253323 (Colonel) Tom Allom Def Leppard's first Album