Drumm, W. M. (1943). Hospital chaplains: An historical synopsis and commentary. Catholic University of America Press.
Chicago-referens (17:e uppl.)Drumm, William Martin. Hospital Chaplains: An Historical Synopsis and Commentary. Washington, D.C.: Catholic University of America Press, 1943.
MLA-referens (8:e uppl.)Drumm, William Martin. Hospital Chaplains: An Historical Synopsis and Commentary. Catholic University of America Press, 1943.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.