APA (7th ed.) Citation

Troeltsch, E., Morgan, R., & Pye, M. (1977). Writings on theology and religion. Duckworth.

Chicago Style (17th ed.) Citation

Troeltsch, Ernst, Robert Morgan, and Michael Pye. Writings on Theology and Religion. London: Duckworth, 1977.

MLA (8th ed.) Citation

Troeltsch, Ernst, et al. Writings on Theology and Religion. Duckworth, 1977.