Dyfyniad APA

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

Dyfyniad Arddull Chicago

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

Dyfyniad MLA

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

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.