Guillaume, R., & Ritz, D. (2002). Guillaume: A life. University of Missouri Press.
Lua i Stíl Chicago (17ú heag.)Guillaume, Robert, agus David Ritz. Guillaume: A Life. Columbia: University of Missouri Press, 2002.
Lua MLA (9ú heag.)Guillaume, Robert, agus David Ritz. Guillaume: A Life. University of Missouri Press, 2002.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.