APA (7th ed.) Citation

Clarke, A. C. Artur C. Clarke's July 20, 2019: : life in the 21st century. Macmillan Publishing.

Chicago Style (17th ed.) Citation

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

MLA (9th ed.) Citation

Clarke, Arthur C. Artur C. Clarke's July 20, 2019: : Life in the 21st Century. Macmillan Publishing.

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