APA

Hoek K. v., . (1939). Pope Pius XII, priest and statesman. New York: Philosophical Library.

Chicago

Hoek Kees van, . 1939. Pope Pius XII, priest and statesman. New York: Philosophical Library.

Harvard

Hoek K. v., . (1939). Pope Pius XII, priest and statesman. New York: Philosophical Library.

MLA

Hoek Kees van, . Pope Pius XII, priest and statesman. New York: Philosophical Library. 1939.