Bridwell Norman. (2012). Clifford's big dictionary. Scholastic.
Lua i Stíl Chicago (17ú heag.)Bridwell Norman. Clifford's Big Dictionary. New York: Scholastic, 2012.
Lua MLA (9ú heag.)Bridwell Norman. Clifford's Big Dictionary. Scholastic, 2012.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.