Cita APA (7th ed.)

Wright, R. L. D. (1976). Understanding statistics: An informal introduction for the behavioral sciences. Harcourt Brace Jovanovich.

Cita Chicago (17th ed.)

Wright, Robert Leslie Douglas. Understanding Statistics: An Informal Introduction for the Behavioral Sciences. New York: Harcourt Brace Jovanovich, 1976.

Cita MLA (9th ed.)

Wright, Robert Leslie Douglas. Understanding Statistics: An Informal Introduction for the Behavioral Sciences. Harcourt Brace Jovanovich, 1976.