Crosby, Donald A. and Stone, Jerome A., eds. 2018a. The Routledge Handbook of Religious Naturalism. Routledge Handbooks in Religion. London: Routledge.
Crosby, Donald A. and Stone, Jerome A. 2018b. “Introduction.” in The Routledge Handbook of Religious Naturalism, edited by Donald A. Crosby and Jerome A. Stone, pp. 1–4. Routledge Handbooks in Religion. London: Routledge.