Heiman, G. W. (2000). Basic statistics for the behavioral sciences (3rd ed.). Houghton Mifflin.
Cita Chicago (17th ed.)Heiman, Gary W. Basic Statistics for the Behavioral Sciences. 3rd ed. Boston: Houghton Mifflin, 2000.
Cita MLA (9th ed.)Heiman, Gary W. Basic Statistics for the Behavioral Sciences. 3rd ed. Houghton Mifflin, 2000.
Atenció: Aquestes cites poden no estar 100% correctes.