Bartholomew, D. J. Mathematical methods in social science. John Wiley and Sons.
Lua i Stíl Chicago (17ú heag.)Bartholomew, David J. Mathematical Methods in Social Science. John Wiley and Sons.
Lua MLA (8ú heag.)Bartholomew, David J. Mathematical Methods in Social Science. John Wiley and Sons.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.