Pope Pius XI and world peace : an authentic biography

MLA

Howard, William Cecil James. Pope Pius Xi and World Peace : an Authentic Biography. London: Robert Hale, 1938.

APA

Howard, W. Cecil James. (1938). Pope Pius XI and world peace : an authentic biography. London: Robert Hale.

Chicago

Howard, William Cecil James, Pope Pius XI and World Peace: An Authentic Biography. London: Robert Hale, 1938.