Cita APA (7a ed.)

Newbold,Paul. (1991). Statistics for business and economics (3rd ed.). Prentice-Hall International.

Cita Chicago Style (17a ed.)

Newbold,Paul. Statistics for Business and Economics. 3rd ed. [London: Prentice-Hall International, 1991.

Cita MLA (9a ed.)

Newbold,Paul. Statistics for Business and Economics. 3rd ed. Prentice-Hall International, 1991.