Sempiternus rex
Subtitle: encyclical letter of Pope Pius XII on the fifteenth centenary of the Council of Chalcedon.
Publisher: National Catholic Welfare Conference
Published: 1951
Place of publication: Washington, D.C
Language: eng
Number of pages: 20
Other titles: On the fifteenth centenary of the Council of Chalcedon.
Work titles: Sempiternus rex (8 Sept. 1951).
Notes: "Translation provided by the Vatican."

"Issued September 8, 1951."

Includes bibliographical references.