Davis, J. H. (1978). The Guggenheims: By John H. Davis. Morrow.
Lua i Stíl Chicago (17ú heag.)Davis, John Hay. The Guggenheims: By John H. Davis. New York: Morrow, 1978.
Lua MLA (8ú heag.)Davis, John Hay. The Guggenheims: By John H. Davis. Morrow, 1978.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.