Eckhardt. Writing, Directing, and Producing Documentary Films and Digital Videos. Southern Illinois University Press.
Lua i Stíl Chicago (17ú heag.)Eckhardt. Writing, Directing, and Producing Documentary Films and Digital Videos. Southern Illinois University Press.
Lua MLA (9ú heag.)Eckhardt. Writing, Directing, and Producing Documentary Films and Digital Videos. Southern Illinois University Press.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.