15. History of The Great War. Based on Official Documents. By Direction of the Historical Section of The Committee of Imperial Defence. Military Operations, France and Belgium, 1918. March - April: Continuation of the German Offensives
Maps and sketches compiled by Major A.F. Becke Hon M.A. (Oxon), R.F.A. (Retd).
This is the IWM/Battery Press reprint. The original was published in 1935.