On the regulation of birth:
Paul VI
On the regulation of birth: encyclical letter Paul VI - Rome Vatican Polyglot Press 1968
Birth control
Catholic Church--Religious aspects--Paul VI--Encyclical "Humanae Vitae"
On the regulation of birth: encyclical letter Paul VI - Rome Vatican Polyglot Press 1968
Birth control
Catholic Church--Religious aspects--Paul VI--Encyclical "Humanae Vitae"