APA (7th ed.) Citation

Joannes, F. V. (1970). La "Humanae vitae". Marfil.

Chicago Style (17th ed.) Citation

Joannes, Fernando Vittorino. La "Humanae Vitae". Alcoy: Marfil, 1970.

MLA (9th ed.) Citation

Joannes, Fernando Vittorino. La "Humanae Vitae". Marfil, 1970.

Warning: These citations may not always be 100% accurate.