Cita APA (7th ed.)

Wonnacott, T. H., & Wonnacott, R. J. (1990). Introductory statistics (5th ed.). Wiley.

Cita Chicago (17th ed.)

Wonnacott, Thomas H., i Ronald J. Wonnacott. Introductory Statistics. 5th ed. New York: Wiley, 1990.

Cita MLA (8th ed.)

Wonnacott, Thomas H., i Ronald J. Wonnacott. Introductory Statistics. 5th ed. Wiley, 1990.