Ayerst David George Ogilvy Europe in the nineteenth century / by D. G. O. Ayerst. - Cambridge [Eng.] : The University Press, 1968. - 440 p.; illus. (incl. maps, geneal. tables) 20 cm. Subjects--Geographic Terms: Europe--History--17891900 LC Class. No.: D299 Dewey Class. No.: 940.27