Cita APA (7th ed.)

Veenstra, R. L. (1948). The secret of suffering. Wm. B. Eerdmans Publishing Company.

Cita Chicago (17th ed.)

Veenstra, Rolf L. The Secret of Suffering. Michigan: Wm. B. Eerdmans Publishing Company, 1948.

Cita MLA (9th ed.)

Veenstra, Rolf L. The Secret of Suffering. Wm. B. Eerdmans Publishing Company, 1948.