Ack-ack : with gun and searchlight crews at work and play anti-aircraft defence of the United Kingdom from 28th July, 1939, to 15th April 1945 / by Frederick A. Pile Guide to war certificate "A" : Outdoor exercises on fieldcraft and section leading / Brian M. Forrest Roof over Britain : the official story of Britain's anti-aircraft defences 1939-1942 / prepared for the War Office and the Air Ministry by the Ministry … War equipment table for headquarters of a light anti-aircraft regiment, RA (Mobile), 1942 : (to command 3 light anti-aircraft batteries)