(1998). Multivariate Data Analysis Joseph F. Hair, Et Al. Prentice-Hall.
Lua i Stíl Chicago (17ú heag.)Multivariate Data Analysis Joseph F. Hair, Et Al. Prentice-Hall, 1998.
Lua MLA (8ú heag.)Multivariate Data Analysis Joseph F. Hair, Et Al. Prentice-Hall, 1998.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.