Pius XII, P. (1956). Psychological method of natural painless childbirth: Address. National Catholic Welfare Conference.
Chicago-Zitierstil (17. Ausg.)Pius XII, Pope. Psychological Method of Natural Painless Childbirth: Address. Washington: National Catholic Welfare Conference, 1956.
MLA-Zitierstil (8. Ausg.)Pius XII, Pope. Psychological Method of Natural Painless Childbirth: Address. National Catholic Welfare Conference, 1956.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.