APA (7. basım) Alıntı

von Hildrbrand, D. (1969). The encyclical humanae vitae: A sign of contradiction. Franciscan Herald Press.

Chicago Style (17. basım) Atıf

von Hildrbrand, Dietrich. The Encyclical Humanae Vitae: A Sign of Contradiction. Chicago: Franciscan Herald Press, 1969.

MLA (9th ed.) Atıf

von Hildrbrand, Dietrich. The Encyclical Humanae Vitae: A Sign of Contradiction. Franciscan Herald Press, 1969.