Cita APA (7a ed.)

Heim, K. (1963). The nature of Protestantism. Fortress Press.

Cita Chicago Style (17a ed.)

Heim, Karl. The Nature of Protestantism. Philadelphia: Fortress Press, 1963.

Cita MLA (9a ed.)

Heim, Karl. The Nature of Protestantism. Fortress Press, 1963.