Παραπομπή APA

Levin, J., & Alan Fox, J. (1997). Elementary statistics in social research. Allyn and Bacon.

Παραπομπή Chicago Style

Levin, Jack, και James Alan Fox. Elementary Statistics in Social Research. Boston: Allyn and Bacon, 1997.

Παραπομπή MLA

Levin, Jack, και James Alan Fox. Elementary Statistics in Social Research. Allyn and Bacon, 1997.