Cita APA (7th ed.)
Newbold, P. (1988). Statistics for business and economics (2nd ed.). Prentice Hall.
Cita Chicago (17th ed.)
Newbold, Paul. Statistics for Business and Economics. 2nd ed. Englewood Cliffs, N.J.: Prentice Hall, 1988.
Cita MLA (9th ed.)
Newbold, Paul. Statistics for Business and Economics. 2nd ed. Prentice Hall, 1988.
Atenció: Aquestes cites poden no estar 100% correctes.