Citazione Stile APA (7a Edizione)

Freund, J. E., & Williams, F. J. a. (1964). Elementary business statistics: The modern approach. Prentice - hall.

Citazione stile Chigago Style (17a edizione)

Freund, John E., e Frank J.[et al] Williams. Elementary Business Statistics: The Modern Approach. New Jersey: Prentice - hall, 1964.

Citatione MLA (9a ed.)

Freund, John E., e Frank J.[et al] Williams. Elementary Business Statistics: The Modern Approach. Prentice - hall, 1964.