Higgins, G. (1971). Labor Day statement, 1971. United States Catholic Conference.
Chicago Style (17th ed.) CitationHiggins, George. Labor Day Statement, 1971. Washington D.C.: United States Catholic Conference, 1971.
Cita MLAHiggins, George. Labor Day Statement, 1971. United States Catholic Conference, 1971.
Atenció: Aquestes cites poden no estar 100% correctes.