Blyth, T. (1986). Sets and mappings 1. Chapman and Hall.
Lua i Stíl Chicago (17ú heag.)Blyth, T. Sets and Mappings 1. London: Chapman and Hall, 1986.
Lua MLA (9ú heag.)Blyth, T. Sets and Mappings 1. Chapman and Hall, 1986.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.