WONNACOTT, T. H. (1972). Introductory statistics. John Wiley.
Cita Chicago (17th ed.)WONNACOTT, Thomas H. Introductory Statistics. New York: John Wiley, 1972.
Cita MLA (9th ed.)WONNACOTT, Thomas H. Introductory Statistics. John Wiley, 1972.
Atenció: Aquestes cites poden no estar 100% correctes.