Wonnacott, T. H., & Wonnacott, R. T. (1977). Introductory statistics for business and economics (2nd ed.). New York.
Chicago Edition CitationWonnacott, Thomas H., i Ronad T. Wonnacott. Introductory Statistics for Business and Economics. 2nd ed. New York, 1977.
Cita MLAWonnacott, Thomas H., i Ronad T. Wonnacott. Introductory Statistics for Business and Economics. 2nd ed. New York, 1977.
Atenció: Aquestes cites poden no estar 100% correctes.