Johnson, G. (19). Contribution of Catholic Education to American Life. Washington, D.C..
Chicago-referens (17:e uppl.)Johnson, George. Contribution of Catholic Education to American Life. Washington, D.C., 19.
MLA-referens (8:e uppl.)Johnson, George. Contribution of Catholic Education to American Life. Washington, D.C., 19.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.