Billheimer, P. E. (1977). Don't waste your sorrows: A study in sainthood and suffering. CLC.
Chicago-referens (17:e uppl.)Billheimer, Paul E. Don't Waste Your Sorrows: A Study in Sainthood and Suffering. Fort Washington: CLC, 1977.
MLA-referens (9:e uppl.)Billheimer, Paul E. Don't Waste Your Sorrows: A Study in Sainthood and Suffering. CLC, 1977.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.