Patterson, B. E. (1977). Reinhold Neibuhr. Word Books.
Cita Chicago (17th ed.)Patterson, Bob E. Reinhold Neibuhr. Word Books, 1977.
Cita MLA (9th ed.)Patterson, Bob E. Reinhold Neibuhr. Word Books, 1977.
Atenció: Aquestes cites poden no estar 100% correctes.