APA (7th ed.) Citation

Polkinghorne, J. C. (1991). The Nature of Physical Reality. Zygon, 26(2), 221-236. doi:10.1111/j.1467-9744.1991.tb00814.x

Chicago Style (17th ed.) Citation

Polkinghorne, John C. "The Nature of Physical Reality." Zygon 26, no. 2 (1991): 221-236, https://doi.org/10.1111/j.1467-9744.1991.tb00814.x.

MLA (8th ed.) Citation

Polkinghorne, John C. "The Nature of Physical Reality." Zygon, vol. 26, no. 2, 1991, pp. 221-236, https://doi.org/10.1111/j.1467-9744.1991.tb00814.x.