References
- Infobox statistics
- Football League clubs: Roger Willis career stats at Soccerbase
- Boston United: "Boston United Roll Call". Boston United FC – The Original Website. Ken Fox. Retrieved 2 February 2012.
- Barnet (Conference): Harman, John, ed. (2005). Alliance to Conference 1979–2004: The first 25 years. Tony Williams Publications. pp. 71, 75. ISBN 978-1-869833-52-7.
- Kettering Town, Stevenage Borough: "Player Profiles: Roger Willis". Stevenage F.C. Retrieved 2 February 2012.
- Cambridge City: "Goals and Games 02/03". Cambridge City F.C. Retrieved 2 February 2012.
- Hucknall Town: "Player Details: Season 2002–2003". SoccerFacts UK. Retrieved 2 February 2012.
- St Albans City: "Roger Willis profile". St Albans City F.C. Retrieved 2 February 2012.
- General
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