Holland, D., & Miller, J. A. (1994). Signs and spaces. Rockport Pub.
Lua i Stíl Chicago (17ú heag.)Holland, D.K, agus J. Abbott Miller. Signs and Spaces. Rockport, Mass: Rockport Pub, 1994.
Lua MLA (9ú heag.)Holland, D.K, agus J. Abbott Miller. Signs and Spaces. Rockport Pub, 1994.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.