Valentine, F. C. (1884). Horrors! S.W. Green's Son.
Lua i Stíl Chicago (17ú heag.)Valentine, F. C. Horrors! New York: S.W. Green's Son, 1884.
Lua MLA (8ú heag.)Valentine, F. C. Horrors! S.W. Green's Son, 1884.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.