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Capital Transport do one, the bar code on it is 9 781854 143648 and the ISBN is 978 1 85414 364 8. It's up to date to 2013 and includes all the S Stock but excludes the C Stock.
I'd highly recommend the 'London Underground 2014 Guide' by respected transport-photographer Jason Cross at £9.95. There's a full stock list including most of the engineering and heritage fleet, plus some background on each line and well-illustrated. The stock list is correct to 25th February, so includes some C stock, although I did notice a few errors creep in with still-extant units not listed and scrapped ones in their place.
Published by and available from Videoscene, but others also retail it (including the LT Museum shop).
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