Croxton, F. (1974). Practical Busness statistics. Prentice Hall.
Lua i Stíl Chicago (17ú heag.)Croxton, Frederick. Practical Busness Statistics. New Delhi: Prentice Hall, 1974.
Lua MLA (9ú heag.)Croxton, Frederick. Practical Busness Statistics. Prentice Hall, 1974.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.