APA (7th ed.) Citation

Purtill, R. L. (1977). Flew and the free will defence. Religious studies, 13(4), 477-483. doi:10.1017/S0034412500010362

Chicago Style (17th ed.) Citation

Purtill, Richard Lawrence. "Flew and the Free Will Defence." Religious Studies 13, no. 4 (1977): 477-483, https://doi.org/10.1017/S0034412500010362.

MLA (8th ed.) Citation

Purtill, Richard Lawrence. "Flew and the Free Will Defence." Religious Studies, vol. 13, no. 4, 1977, pp. 477-483, https://doi.org/10.1017/S0034412500010362.