Cita APA (7th ed.)

Freund, J. E., Williams, F. J., & Perles, B. M. (1997). Elementary business statistics: The modern approach (5th ed.). Prentice Hall Pte Ltd.

Cita Chicago (17th ed.)

Freund, John E., Frank Jefferson Williams, i Benjamin M. Perles. Elementary Business Statistics: The Modern Approach. 5th ed. Singapore: Prentice Hall Pte Ltd, 1997.

Cita MLA (9th ed.)

Freund, John E., et al. Elementary Business Statistics: The Modern Approach. 5th ed. Prentice Hall Pte Ltd, 1997.