An introduction to the study of international relations - Grant, A. J. (Arthur James), 1862-1948; Urquhart, Francis Fortescue, 1868-1934; Greenwood, Arthur, 1880-1954; Hughes, John David Ivor; Lothian, Philip Henry Kerr, Marquis of, 1882-1940 (Macmillan and co., limited, 1916)