Hammond, M. (1980). Fathom. Severn House.
Lua i Stíl Chicago (17ú heag.)Hammond, Marc. Fathom. London: Severn House, 1980.
Lua MLA (8ú heag.)Hammond, Marc. Fathom. Severn House, 1980.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.