Cita APA (7a ed.)

Hildebrand, D. v. (2018). The encyclical Humanae vitae: A sign of contradiction : an essay on birth control and Catholic conscience. Hildebrand Press.

Cita Chicago Style (17a ed.)

Hildebrand, Dietrich von. The Encyclical Humanae Vitae: A Sign of Contradiction : An Essay on Birth Control and Catholic Conscience. Steubenville, Ohio: Hildebrand Press, 2018.

Cita MLA (9a ed.)

Hildebrand, Dietrich von. The Encyclical Humanae Vitae: A Sign of Contradiction : An Essay on Birth Control and Catholic Conscience. Hildebrand Press, 2018.