Freund, J. E. (1992). Mathematical statistics. Prentice-Hall.
Lua i Stíl Chicago (17ú heag.)Freund, John E. Mathematical Statistics. New Delhi: Prentice-Hall, 1992.
Lua MLA (9ú heag.)Freund, John E. Mathematical Statistics. Prentice-Hall, 1992.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.