The Aviation Bookshop http://www.aviation-bookshop.com/index.html
for or members who life in France or Benelux
it's a nice car trip to Calais->Dover then 90 km to Tunbridge Wells, Kent
Ian Allan Bookshop
http://www.ianallanpublishing.com/?cat=1013
Motorbooks
http://www.motorbooks.co.uk/
Falconwood Transport Bookshop
http://stores.ebay.co.uk/FALCONWOOD-TRANSPORT-BOOKSHOP
so if you don't daring to drive on left side of road, go shoping in there Internet shops...