Cita APA (7th ed.)

Heitzman, W. R., & Mueller, F. W. (1980). Statistics for business and economics. Allyn and Bacon.

Cita Chicago (17th ed.)

Heitzman, William R., i Frederick W. Mueller. Statistics for Business and Economics. Boston: Allyn and Bacon, 1980.

Cita MLA (9th ed.)

Heitzman, William R., i Frederick W. Mueller. Statistics for Business and Economics. Allyn and Bacon, 1980.