Cita APA (7th ed.)

Wright, D. B. (1997). Understanding statistics: an introduction for the social: Sciences. Sage.

Cita Chicago (17th ed.)

Wright, Daniel B. Understanding Statistics: An Introduction for the Social: Sciences. London: Sage, 1997.

Cita MLA (9th ed.)

Wright, Daniel B. Understanding Statistics: An Introduction for the Social: Sciences. Sage, 1997.