In the wake of the tank : the first fifteen years of mechanization in the British army / by Lieut.-Col. G. Le Q. Martel, D.S.O., … War posters : weapons of mass communication / James Aulich Air-Raid Precautions Act, 1937 : 1 & 2 Geo. 6. Ch. 6 / [Home Office. Air Raid Precautions Department] British tanks, 1915-1945