Weiers, R. M. (1994). Introduction to business statistics (2nd.ed.). Dryden.
Cita Chicago (17th ed.)Weiers, Ronald M. Introduction to Business Statistics. 2nd.ed. Fort Worth: Dryden, 1994.
Cita MLA (9th ed.)Weiers, Ronald M. Introduction to Business Statistics. 2nd.ed. Dryden, 1994.
Atenció: Aquestes cites poden no estar 100% correctes.