APA Citation

Gilbert, M. (. ). (1999). Challenge to civilization: A history of the twentieth century 1952-1999. London: Harper Collins.

Chicago Style Citation

Gilbert, Martin (1936- ). Challenge to Civilization: A History of the Twentieth Century 1952-1999. London: Harper Collins, 1999.

MLA Citation

Gilbert, Martin (1936- ). Challenge to Civilization: A History of the Twentieth Century 1952-1999. London: Harper Collins, 1999.

Warning: These citations may not always be 100% accurate.