APA (7th ed.) Citation

Catholic Church. Pope (1939-1958 : Pius XII) & Pius XII, P. (1957). Bis saeculari: Apostolic constitution on sodalities of Our Lady. Queen's Work.

Chicago Style (17th ed.) Citation

Catholic Church. Pope (1939-1958 : Pius XII) and Pope Pius XII. Bis Saeculari: Apostolic Constitution on Sodalities of Our Lady. St. Louis, MO: Queen's Work, 1957.

MLA (8th ed.) Citation

Catholic Church. Pope (1939-1958 : Pius XII) and Pope Pius XII. Bis Saeculari: Apostolic Constitution on Sodalities of Our Lady. Queen's Work, 1957.