Middlebrook, Martin, 1932- The Kaiser's battle : 21 March 1918: the first day of the German spring offensive / Martin Middlebrook. - Harmondsworth : Penguin, 1983, c1978. - 431 p., [12] p. of plates : ill., 1 facsim, plans, ports. ; 20 cm. + pbk. Bibliography: p. 422. - Includes index. ISBN: 014005278X Subjects--Topical Terms: World War, 1914-1918--Campaigns--Western Front. Dewey Class. No.: 940.434