APA (7th ed.) Citation

Polkinghorne, J. C. (2000). The life and works of a bottom-up thinker. Zygon, 35(4), 955-962.

Chicago Style (17th ed.) Citation

Polkinghorne, John C. "The Life and Works of a Bottom-up Thinker." Zygon 35, no. 4 (2000): 955-962.

MLA (8th ed.) Citation

Polkinghorne, John C. "The Life and Works of a Bottom-up Thinker." Zygon, vol. 35, no. 4, 2000, pp. 955-962.