APA
Ratzinger J., . (1966). The open circle: The meaning of christian Brotherhood. New York: Sheed and Ward.
Chicago
Ratzinger Joseph, . 1966. The open circle: The meaning of christian Brotherhood. New York: Sheed and Ward.
Harvard
Ratzinger J., . (1966). The open circle: The meaning of christian Brotherhood. New York: Sheed and Ward.
MLA
Ratzinger Joseph, . The open circle: The meaning of christian Brotherhood. New York: Sheed and Ward. 1966.
