by Harry Emerson Fosdick., Includes indexes., Main Heritage Shelves General, DS107.3 .F67 1931, Book, Item-ID: i10042623, BIB-ID: 1006065, Includes bibliographical references (p. 295-297).
with an introduction by Brigadier-General Sir Percy Sykes ..., Main Heritage Shelves General, DS257 .C43 1927, Book, Item-ID: i10177243, BIB-ID: 1019360