Cita APA (7a ed.)

Mackey, A., & Ahlquist, D. (2009). G. K. Chesterton: A prophet for the 21st Century. IHS Press.

Cita Chicago Style (17a ed.)

Mackey, Aidan, y Dale Ahlquist. G. K. Chesterton: A Prophet for the 21st Century. [Lloc de publicació no identificat]: IHS Press, 2009.

Cita MLA (9a ed.)

Mackey, Aidan, y Dale Ahlquist. G. K. Chesterton: A Prophet for the 21st Century. IHS Press, 2009.