APA aipamena

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

Chicago Style aipamena

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

MLA aipamena

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