Ravid, R. (2011). Study guide for practical statistics for educators (4th ed.). Rowman & Littlefield Publishers.
Chicago-Zitierstil (17. Ausg.)Ravid, Ruth. Study Guide for Practical Statistics for Educators. 4th ed. Lanham [Md.]: Rowman & Littlefield Publishers, 2011.
MLA-Zitierstil (9. Ausg.)Ravid, Ruth. Study Guide for Practical Statistics for Educators. 4th ed. Rowman & Littlefield Publishers, 2011.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.