Levin, J., & Fox, J. A. (2004). Elementary statistics in social research: The essentials. Boston: Pearson/Allyn & Bacon.
استشهاد بنمط شيكاغوLevin, Jack, و James Alan Fox. Elementary Statistics in Social Research: The Essentials. Boston: Pearson/Allyn & Bacon, 2004.
MLA استشهادLevin, Jack, و James Alan Fox. Elementary Statistics in Social Research: The Essentials. Boston: Pearson/Allyn & Bacon, 2004.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.