Jolliffe, I. T. (2002). Principal component analysis (2nd ed.). Springer.
Lua i Stíl Chicago (17ú heag.)Jolliffe, I. T. Principal Component Analysis. 2nd ed. New York: Springer, 2002.
Lua MLA (8ú heag.)Jolliffe, I. T. Principal Component Analysis. 2nd ed. Springer, 2002.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.