Billheimer, P. E. (1977). Don't waste your sorrows: A study in sainthood and suffering. CLC.
Cita Chicago (17th ed.)Billheimer, Paul E. Don't Waste Your Sorrows: A Study in Sainthood and Suffering. Fort Washington: CLC, 1977.
Cita MLA (9th ed.)Billheimer, Paul E. Don't Waste Your Sorrows: A Study in Sainthood and Suffering. CLC, 1977.
Atenció: Aquestes cites poden no estar 100% correctes.