Hildebrand, D. v. (1969). The encyclical Humanae vitae, a sign of contradiction: An essay on birth control and Catholic conscience. Franciscan Herald Press.
Chicago Style (17th ed.) CitationHildebrand, Dietrich von. The Encyclical Humanae Vitae, a Sign of Contradiction: An Essay on Birth Control and Catholic Conscience. Chicago: Franciscan Herald Press, 1969.
MLA (9th ed.) CitationHildebrand, Dietrich von. The Encyclical Humanae Vitae, a Sign of Contradiction: An Essay on Birth Control and Catholic Conscience. Franciscan Herald Press, 1969.
Warning: These citations may not always be 100% accurate.