| A | Iron Maiden- engineer:
- Mike Kemp and Martin Levan
- producer:
- Iron Maiden and Wil Malone
- mixer:
- Gary Lucas
- drums (drum set):
- Doug Sampson (from 1978-12-30 until 1978-12-31, in 1979-12), Clive Burr (in 1979-12) and Nicko McBrain (in 1979-12)
- electric bass guitar:
- Steve Harris (from 1978-12-30 until 1978-12-31, in 1979-12)
- electric guitar:
- Paul Cairns (from 1978-12-30 until 1978-12-31), Dave Murray (from 1978-12-30 until 1978-12-31, in 1979-12) and Dennis Stratton (in 1979-12)
- background vocals:
- Steve Harris (in 1979-12) and Dennis Stratton (in 1979-12)
- lead vocals:
- Paul Di’Anno (from 1978-12-30 until 1978-12-31, in 1979-12)
- phonographic copyright (℗) by:
- EMI Records Ltd.
- recorded at:
- Spaceward Studios in Cambridge, Cambridgeshire, England, United Kingdom (from 1978-12-30 until 1978-12-31) and Kingsway Studios in Camden, London, England, United Kingdom (in 1979-12)
- recording of:
- Iron Maiden (from 1978-12-30 until 1978-12-31)
- lyricist and composer:
- Steve Harris
- publisher:
- Zomba Music Publishers Ltd. and Zomba Music Publishing Ltd.
- recording of:
- Iron Maiden (in 1979-12)
- lyricist and composer:
- Steve Harris
- publisher:
- Zomba Music Publishers Ltd. and Zomba Music Publishing Ltd.
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