Dobbs, S. (2006). Advanced Level Mathematics: Statistics 1. Cambridge University Press.
Lua i Stíl Chicago (17ú heag.)Dobbs, Steve. Advanced Level Mathematics: Statistics 1. Cambridge University Press, 2006.
Lua MLA (8ú heag.)Dobbs, Steve. Advanced Level Mathematics: Statistics 1. Cambridge University Press, 2006.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.