Mayer, S. L. The two World Wars : a guide to manuscript collections in the United Kingdom / S. L. Mayer & W. J. Koenig. - London ; Bowker, 1976. - xii, 317 p. ; Includes index.-- ISBN: 0859350142 Subjects--Topical Terms: World War, 1914-1918-Manuscripts------ Dewey Class. No.: 940.3016 / Tw