Technical data and information has mainly come from the following publications:

Brown, David, Southern Electric (2 volumes) (Harrow Weald:Capital Transport, 2010)

Conner, Piers, The London Underground Electric Train (Ramsbury:Crowood, 2015)

Hardy, Brian, Tube Trains on the Isle of Wight (Harrow Weald:Capital Transport, 2003)

Haresnape, Brian & Swain, Alec, British Rail Fleet Survey (11 volumes) (Hersham:Ian Allan, 1981-1990)

Jennison, John & Sheffield, Tony, Diesel Hydraulics in the 1960s and 1970s (Hersham:Ian Allan, 2014)

King, Ray, British Industrial Diesel Locomotives (Diss:Barkers, 2006)

Marsden, Colin J., DMU and EMU Recognition Guide (Hersham:Ian Allan, 2013)

Marsden, Colin J., Traction Recognition (Second Edition) (Hersham:Ian Allan, 2009)

Morrison, Gavin, AC Electric Locomotives (Hersham:Ian Allan, 2013)

Muldoon, Ben, London Underground Rolling Stock Guide (Hersham:Ian Allan, 2014)

Vickers, R.L., DC Electric Trains and Locomotives in the British Isles (Newton Abbot:David & Charles, 1986)

plus periodicals such as Underground News, Modern Locomotives Illustrated and Railways Illustrated.