Cita APA (7a ed.)

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

Cita Chicago Style (17a ed.)

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

Cita MLA (9a ed.)

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