Παραπομπή σε μορφή APA (7η εκδ.)

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

Παραπομπή σε μορφή Chicago (17η εκδ.)

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

Παραπομπή σε μορφή MLA (8th εκδ.)

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