Cita APA (7th ed.)

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

Cita Chicago (17th ed.)

Newbold, Paul. Statistics for Business and Economics. 3rd ed. Englewood Cliffs, N.J: Prentice-Hall, 1991.

Cita MLA (9th ed.)

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