McCune, S. K. (2010). Statistics. New York : McGraw-Hill.
Lua i Stíl Chicago (17ú heag.)McCune, Sandra K. Statistics. New York : McGraw-Hill, 2010.
Lua MLA (9ú heag.)McCune, Sandra K. Statistics. New York : McGraw-Hill, 2010.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.