APA (7th ed.) Citation

Arthur, W., & Arthur, S. (2017). Life through time and space. Harvard University Press.

Chicago Style (17th ed.) Citation

Arthur, Wallace, and Stephen Arthur. Life Through Time and Space. Cambridge, Massachusetts: Harvard University Press, 2017.

MLA (9th ed.) Citation

Arthur, Wallace, and Stephen Arthur. Life Through Time and Space. Harvard University Press, 2017.