Schmiedeler, E. 1. N. C. W. C. (1941). The Threat of American Decline. Washington, D.C..
Chicago-viite (17. p.)Schmiedeler, Edgar 1892-1963; National Catholic Welfare Conference. The Threat of American Decline. Washington, D.C., 1941.
MLA-viite (8. p.)Schmiedeler, Edgar 1892-1963; National Catholic Welfare Conference. The Threat of American Decline. Washington, D.C., 1941.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.