Cita APA (7a ed.)

Tillich, P. (1962). The shaking of the foundations. Penguin Books.

Cita Chicago Style (17a ed.)

Tillich, Paul. The Shaking of the Foundations. London: Penguin Books, 1962.

Cita MLA (8a ed.)

Tillich, Paul. The Shaking of the Foundations. Penguin Books, 1962.