Cita APA (7a ed.)

Ellul, J., Gill, D. W., Richmond, L., & Lewis, T. (2017). Presence in the modern world. James Clarke & Co.

Cita Chicago Style (17a ed.)

Ellul, Jacques, David W. Gill, Lisa Richmond, y Ted Lewis. Presence in the Modern World. Cambridge, United Kingdom: James Clarke & Co, 2017.

Cita MLA (9a ed.)

Ellul, Jacques, et al. Presence in the Modern World. James Clarke & Co, 2017.