Farrell, A. P. (1938). The Jesuit code of liberal education: Development and scope of the Ratio studiorum. Bruce.
Chicago-referens (17:e uppl.)Farrell, Allan P. The Jesuit Code of Liberal Education: Development and Scope of the Ratio Studiorum. Milwaukee: Bruce, 1938.
MLA-referens (8:e uppl.)Farrell, Allan P. The Jesuit Code of Liberal Education: Development and Scope of the Ratio Studiorum. Bruce, 1938.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.