Baggaley, A. R. (1964). Intermediate correlational methods. Wiley.
Lua i Stíl Chicago (17ú heag.)Baggaley, Andrew R. Intermediate Correlational Methods. New York: Wiley, 1964.
Lua MLA (9ú heag.)Baggaley, Andrew R. Intermediate Correlational Methods. Wiley, 1964.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.