APA (7th ed.) Citation

Clarke, A. C. . [. .. (1986). Arthur C. Clarke's July 20, 2019: Life in the 21st century. Macmillan.

Chicago Style (17th ed.) Citation

Clarke, Arthur C. []. Arthur C. Clarke's July 20, 2019: Life in the 21st Century. New York: Macmillan, 1986.

MLA (9th ed.) Citation

Clarke, Arthur C. []. Arthur C. Clarke's July 20, 2019: Life in the 21st Century. Macmillan, 1986.