Trotter, W. 1872-1939. Instincts of the herd in peace and war, 1916-1919. / W. Trotter, [Editor: R. W. Chapman] - London : Oxford University Press, 1953. - xvi, 219 p. ; 23 cm. LCCN: 53-003695 Subjects--Topical Terms: Social psychology.--------World War, 1914-1918.--------Crowds.-------- Dewey Class. No.: 301.23 TRO