Hoobler, D., & Hoobler, T. (1996). The German American Family Album. Oxford Universituy Press.
Lua i Stíl Chicago (17ú heag.)Hoobler, Dorothy, agus Thomas Hoobler. The German American Family Album. New York ; Oxford: Oxford Universituy Press, 1996.
Lua MLA (8ú heag.)Hoobler, Dorothy, agus Thomas Hoobler. The German American Family Album. Oxford Universituy Press, 1996.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.