Hirsch, H. N. (1981). The enigma of Felix Frankfurter. Basic Books.
Lua i Stíl Chicago (17ú heag.)Hirsch, H. N. The Enigma of Felix Frankfurter. Basic Books, 1981.
Lua MLA (9ú heag.)Hirsch, H. N. The Enigma of Felix Frankfurter. Basic Books, 1981.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.