Jackson, S. L. (2017). Statistics: Plain and simple (Fourth edition.). Cengage Learning.
Cita Chicago (17th ed.)Jackson, Sherri L. Statistics: Plain and Simple. Fourth edition. Boston, Massachusetts: Cengage Learning, 2017.
Cita MLA (9th ed.)Jackson, Sherri L. Statistics: Plain and Simple. Fourth edition. Cengage Learning, 2017.
Atenció: Aquestes cites poden no estar 100% correctes.