Friedman, R. L. (1974). Intellectual Traditions at the Medieval University: By Russell L. Friedman. Brill.
Lua i Stíl Chicago (17ú heag.)Friedman, Russell L. Intellectual Traditions at the Medieval University: By Russell L. Friedman. Leiden ; Boston: Brill, 1974.
Lua MLA (8ú heag.)Friedman, Russell L. Intellectual Traditions at the Medieval University: By Russell L. Friedman. Brill, 1974.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.