Cita APA

Bailey, J. M., Gilbert, D., & Bonhoeffer, D. (1969). The Steps of Bonhoeffer: A pictorial album. Macmillan.

Citación estilo Chicago

Bailey, J. M., Douglas Gilbert, y Dietrich Bonhoeffer. The Steps of Bonhoeffer: A Pictorial Album. New York ; London: Macmillan, 1969.

Cita MLA

Bailey, J. M., et al. The Steps of Bonhoeffer: A Pictorial Album. Macmillan, 1969.