John XXIII, P. (1961). The Holy Father speaks to athletes. National Catholic Welfare Conference.
Chicagoスタイル(17版)引用形式John XXIII, Pope. The Holy Father Speaks to Athletes. Washington: National Catholic Welfare Conference, 1961.
MLA(8版)引用形式John XXIII, Pope. The Holy Father Speaks to Athletes. National Catholic Welfare Conference, 1961.
警告: この引用は必ずしも正確ではありません.