Archdiocese of Philadelphia, O. o. t. S. o. S. Report to the Community: Catholic Secondary Education in the Archdiocese of Philadelphia. Philadelphia.
Chicago-referens (17:e uppl.)Archdiocese of Philadelphia, Office of the Superintendent of Schools. Report to the Community: Catholic Secondary Education in the Archdiocese of Philadelphia. Philadelphia.
MLA-referens (8:e uppl.)Archdiocese of Philadelphia, Office of the Superintendent of Schools. Report to the Community: Catholic Secondary Education in the Archdiocese of Philadelphia. Philadelphia.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.