APA-referens (7:e uppl.)

Catholic Church. Pope (1963-1978 : Paul VI). (1967). On the development of peoples: Populorum progressio. Our Sunday Visitor.

Chicago-referens (17:e uppl.)

Catholic Church. Pope (1963-1978 : Paul VI). On the Development of Peoples: Populorum Progressio. Huntington, Ind.: Our Sunday Visitor, 1967.

MLA-referens (8:e uppl.)

Catholic Church. Pope (1963-1978 : Paul VI). On the Development of Peoples: Populorum Progressio. Our Sunday Visitor, 1967.

Varning: dessa hänvisningar är inte alltid fullständigt riktiga.