Kauffman, J. F. (1966). Education. Potomac Books.
Lua i Stíl Chicago (17ú heag.)Kauffman, Joseph F. Education. Washington: Potomac Books, 1966.
Lua MLA (9ú heag.)Kauffman, Joseph F. Education. Potomac Books, 1966.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.