Levin, J., & Fox, J. A. (1997). Elementary statistics in social research. Allyn and Bacon.
Citazione stile Chigago Style (17a edizione)Levin, Jack, e James Alan Fox. Elementary Statistics in Social Research. Boston: Allyn and Bacon, 1997.
Citatione MLA (9a ed.)Levin, Jack, e James Alan Fox. Elementary Statistics in Social Research. Allyn and Bacon, 1997.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.