APA (7th ed.) Citation

TEGMARK, M. (2017). OUR NEXT BILLION YEARS. Discover, 38(9), 58.

Chicago Style (17th ed.) Citation

TEGMARK, MAX. "OUR NEXT BILLION YEARS." Discover 38, no. 9 (2017): 58.

MLA (9th ed.) Citation

TEGMARK, MAX. "OUR NEXT BILLION YEARS." Discover, vol. 38, no. 9, 2017, p. 58.