Ward, H. (1987). World power in the twentieth century (2nd ed.). London: BBC.
Chicago Style CitationWard, Harriet. World Power in the Twentieth Century. 2nd ed. London: BBC, 1987.
MLA CitationWard, Harriet. World Power in the Twentieth Century. 2nd ed. London: BBC, 1987.
Warning: These citations may not always be 100% accurate.