"Gary Mills". 11v11.com. AFS Enterprises. Archived from the original on 9 January 2018. Retrieved 9 January 2018.
alfretontownfc.com
"The club". Alfreton Town F.C. Archived from the original on 1 October 2013. Retrieved 17 October 2013.
"All time – Playing records". Alfreton Town F.C. Archived from the original on 1 October 2013. Retrieved 17 October 2013. Williams; Williams (eds.). Non-League Club Directory 2008. p. 192.
Dunham, Jon (8 August 2020). "Mills is the man for Corby". Northamptonshire Telegraph. Kettering. Archived from the original on 5 June 2021. Retrieved 6 June 2021.
Yannis, Alex (19 September 1982). "Cosmos win Soccer Bowl". The New York Times. Archived from the original on 12 December 2014. Retrieved 15 December 2014.
"1996/97: All: Matches". The Football Archives. Archived from the original on 17 June 2016. Retrieved 15 December 2014. Individual seasons accessed via drop-down list.
"Mills in reserve for City". Coventry Evening Telegraph. 23 May 2002. Archived from the original on 17 August 2018. Retrieved 18 August 2018 – via TheFreeLibrary.com.
Yannis, Alex (19 September 1982). "Cosmos win Soccer Bowl". The New York Times. Archived from the original on 12 December 2014. Retrieved 15 December 2014.
"1996/97: All: Matches". The Football Archives. Archived from the original on 17 June 2016. Retrieved 15 December 2014. Individual seasons accessed via drop-down list.
"Mills in reserve for City". Coventry Evening Telegraph. 23 May 2002. Archived from the original on 17 August 2018. Retrieved 18 August 2018 – via TheFreeLibrary.com.
"All time – Playing records". Alfreton Town F.C. Archived from the original on 1 October 2013. Retrieved 17 October 2013. Williams; Williams (eds.). Non-League Club Directory 2008. p. 192.
Appleyard, Ian (30 September 2017). "Club statement: Gary Mills". York City F.C. Archived from the original on 30 September 2017. Retrieved 30 September 2017.
Dunham, Jon (8 August 2020). "Mills is the man for Corby". Northamptonshire Telegraph. Kettering. Archived from the original on 5 June 2021. Retrieved 6 June 2021.
Appleyard, Ian (30 September 2017). "Club statement: Gary Mills". York City F.C. Archived from the original on 30 September 2017. Retrieved 30 September 2017.