Dyfyniad APA

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

Dyfyniad Arddull Chicago

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

Dyfyniad MLA

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

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.