Hill, E. Spot Says Goodnight (Board Book). Putnam Publishing Group.
Lua i Stíl Chicago (17ú heag.)Hill, Eric. Spot Says Goodnight (Board Book). Putnam Publishing Group.
Lua MLA (8ú heag.)Hill, Eric. Spot Says Goodnight (Board Book). Putnam Publishing Group.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.