Loehlin, J. C. (1992). Latent variable models: An introduction to factor, path, and structural analysis (2nd ed.). Lawrence Erlbaum Associates.
Lua i Stíl Chicago (17ú heag.)Loehlin, John C. Latent Variable Models: An Introduction to Factor, Path, and Structural Analysis. 2nd ed. Hillsdale, N.J: Lawrence Erlbaum Associates, 1992.
Lua MLA (9ú heag.)Loehlin, John C. Latent Variable Models: An Introduction to Factor, Path, and Structural Analysis. 2nd ed. Lawrence Erlbaum Associates, 1992.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.