John XXIII, P. (1961). The Holy Father speaks to athletes. National Catholic Welfare Conference.
Style de citation Chicago (17e éd.)John XXIII, Pope. The Holy Father Speaks to Athletes. Washington: National Catholic Welfare Conference, 1961.
Style de citation MLA (8e éd.)John XXIII, Pope. The Holy Father Speaks to Athletes. National Catholic Welfare Conference, 1961.
Attention : ces citations peuvent ne pas être correctes à 100%.