Cita APA

Fox, J. A., & Levin, J. (1991). Elementary statistics in social research (5.).

Chicago Edition Citation

Fox, James Alan, i Jack Levin. Elementary Statistics in Social Research. 5. New York, Horper Collins Publishers, 1991.

Cita MLA

Fox, James Alan, i Jack Levin. Elementary Statistics in Social Research. 5. 1991.