Duke, I. (2004). The everything sign language book: American sigh language made easy. Adams Media.
Lua i Stíl Chicago (17ú heag.)Duke, Irene. The Everything Sign Language Book: American Sigh Language Made Easy. Avon, Mass: Adams Media, 2004.
Lua MLA (9ú heag.)Duke, Irene. The Everything Sign Language Book: American Sigh Language Made Easy. Adams Media, 2004.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.