Wright, R. L. D. (1976). Understanding statistics: An informal introduction for the behavioral sciences. Harcourt Brace Jovanovich.
Citazione stile Chigago Style (17a edizione)Wright, Robert Leslie Douglas. Understanding Statistics: An Informal Introduction for the Behavioral Sciences. New York: Harcourt Brace Jovanovich, 1976.
Citatione MLA (9a ed.)Wright, Robert Leslie Douglas. Understanding Statistics: An Informal Introduction for the Behavioral Sciences. Harcourt Brace Jovanovich, 1976.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.