อ้างอิง ของ แกรี_สปีด

  1. 1 2 Hugman, Barry J., ed. (2009). The PFA Footballers' Who's Who 2009–10. Mainstream Publishing. p. 386. ISBN 9781845964740.
  2. 1 2 3 Nick Szczepanik (27 November 2011). "Gary Speed Obituary". guardian.co.uk.
  3. ↑ "Gary Speed Obituary". telegraph.co.uk. 27 November 2011.
  4. ↑ "Gary Speed: Tributes pour in for Wales manager who has died aged 42". BBC Sport. 27 November 2011. สืบค้นเมื่อ 2 December 2011.
  5. ↑ Ponting, Ivan (28 November 2011). "Gary Speed: Footballer and Wales manager whose playing career spanned 22 years". The Independent. สืบค้นเมื่อ 2 December 2011.