Muggeridge, M. (1979). Malcolm Muggeridge on Humanae vitae. National Committee of Catholic Laymen.
Lua i Stíl Chicago (17ú heag.)Muggeridge, Malcolm. Malcolm Muggeridge on Humanae Vitae. New York: National Committee of Catholic Laymen, 1979.
Lua MLA (8ú heag.)Muggeridge, Malcolm. Malcolm Muggeridge on Humanae Vitae. National Committee of Catholic Laymen, 1979.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.