APA引文

Pius XII, P. (1956). Psychological method of natural painless childbirth: Address. National Catholic Welfare Conference.

Chicago Style (17th ed.) Citation

Pius XII, Pope. Psychological Method of Natural Painless Childbirth: Address. Washington: National Catholic Welfare Conference, 1956.

MLA引文

Pius XII, Pope. Psychological Method of Natural Painless Childbirth: Address. National Catholic Welfare Conference, 1956.