APA (7e ed.) Bronvermelding

Newbold, P. (1995). Statistics for business & economics (4th ed.). Prentice-Hall.

Chicago (17e ed.) Bronvermelding

Newbold, Paul. Statistics for Business & Economics. 4th ed. Englewood Cliffs, N.J: Prentice-Hall, 1995.

MLA (9e ed.) Bronvermelding

Newbold, Paul. Statistics for Business & Economics. 4th ed. Prentice-Hall, 1995.