^“Robbie Johnson”. Barry Hugman's Footballers. Truy cập 29 tháng 4 năm 2019.
^Haynes, Graham; Coumbe, Frank (2006). Timeless Bees: Brentford F.C. Who's Who 1920-2006. Harefield: Yore Publications. tr. 88. ISBN978-0955294914.
^Croxford, Mark; Lane, David; Waterman, Greville (2011). The Big Brentford Book of the Eighties. Sunbury, Middlesex: Legends Publishing. tr. 41. ISBN978-1906796716.