Imperialism : the story and significance of a political word, 1840-1960 / Richard Koebner and Helmut Dan Schmidt. Koebner, Richard 1885-1958. Schmidt, Helmut Dan joint author. Imperialism. JC359 .K6 321.03 KOI Includes Bibliographical references and index. Cambridge : University Press, 1965. 1965. 1965 Text xxv, 432 p. ; eng