Kummerow, J., & Hirsh, S. (1989). Lifetypes. Warner Books.
Lua i Stíl Chicago (17ú heag.)Kummerow, Jean, agus Sandra Hirsh. Lifetypes. New York, NY: Warner Books, 1989.
Lua MLA (9ú heag.)Kummerow, Jean, agus Sandra Hirsh. Lifetypes. Warner Books, 1989.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.