APA (7th ed.) Citation

Catholic Church. Pope (1963-1978 : Paul VI), National Catholic Welfare Conference, & Paul VI, P. (1965). Motu proprio Apostolica sollicitudo. National Catholic Welfare Conference.

Chicago Style (17th ed.) Citation

Catholic Church. Pope (1963-1978 : Paul VI), National Catholic Welfare Conference, and Pope Paul VI. Motu Proprio Apostolica Sollicitudo. Washington, D.C.: National Catholic Welfare Conference, 1965.

MLA (8th ed.) Citation

Catholic Church. Pope (1963-1978 : Paul VI), et al. Motu Proprio Apostolica Sollicitudo. National Catholic Welfare Conference, 1965.