Cita APA (7th ed.)

Wright, J., & Unwin, A. (1997). Datenanalyse macht Spass. Sigma.

Cita Chicago (17th ed.)

Wright, John, i Antony Unwin. "Datenanalyse Macht Spass." Sigma 1997.

Cita MLA (8th ed.)

Wright, John, i Antony Unwin. "Datenanalyse Macht Spass." Sigma, 1997.